Rainforest,Destruction.,Gold,Mining,Place,In,Guyana,,South,America.,Amazon

Gold mining in Peru has moved into sensitive wetland areas and is releasing a lot of stored carbon. These wetlands are peatlands, waterlogged soils built from partly decayed plants that lock away carbon for centuries.



Peat loss turns a slow natural carbon vault into a fast source of emissions. That is why scientists are sounding the alarm about new mining scars in remote corners of the Amazon.



<h2 class="wp-block-heading" id="h-peatlands-carbon-and-mining">Peatlands, carbon, and mining</h2>



<a href="https://www.unep.org/resources/global-peatlands-assessment-2022" target="_blank" rel="noreferrer noopener">Peatlands</a> hold an outsized share of the world’s soil carbon and help stabilize climate over long timescales. They cover a small slice of land area yet store a huge fraction of carbon underground.



Lead researcher <a href="https://www.ifgg.kit.edu/english/staff_householder.php" target="_blank" rel="noreferrer noopener">J Ethan Householder</a> is with the Wetland Department, Institute of Geography and Geoecology at Karlsruhe Institute of Technology in Germany (<a href="https://www.ifgg.kit.edu/english/index.php" target="_blank" rel="noreferrer noopener">IFGG</a>). 



His team’s field work and satellite analyses focus on peat swamps in southeastern Peru.



The term carbon stocks refers to the amount of carbon stored in plants and soils. In peat, most of that carbon sits below the surface in thick, oxygen poor layers that decompose very slowly.



These peat swamps also support biodiversity, the variety of living species in an ecosystem. When mining drains or digs up peat, both the <a href="https://www.earth.com/news/carbon-storage-mystery-emerges-in-the-southern-ocean/">carbon</a> bank and the living communities take a hit.



<h2 class="wp-block-heading" id="h-what-the-satellites-saw">What the satellites saw</h2>



The study analyzed more than three decades of images from <a href="https://landsat.gsfc.nasa.gov/satellites/" target="_blank" rel="noreferrer noopener">Landsat</a>, a U.S. satellite program that produces consistent pictures of Earth’s surface each year. 



That time series lets researchers pinpoint when forests were cleared and when bare mine pits appeared.



They mapped mining scars along rivers in <a href="https://7wonders.org/south-america/peru/madre-de-dios/" target="_blank" rel="noreferrer noopener">Madre de Dios</a>, a region in Peru that has seen a rapid spread of small operations. The scars are easy to spot because forest gives way to sand and water filled pits.



<h2 class="wp-block-heading" id="h-massive-carbon-release-from-mining">Massive carbon release from mining</h2>



In a new paper, the team reports that mining has removed more than 550 hectares of peatland, with over half of that loss happening in just the last two years. 



They estimate that 0.2 to 0.7 million tons of carbon have already been released, and they identify 63 of 219 peatlands showing evidence of mining at their edges.



They also find that mining inside peat now accounts for 9 percent of all mining in the area and could reach 25 percent by 2027 if current trends hold. 



The analysis flags more than 10,000 hectares of peat at immediate risk, with a potential release of 3.5 to 14.5 million tons of <a href="https://www.earth.com/news/how-the-ocean-holds-carbon-hidden-mechanisms-revealed/">carbon</a> if those areas are disturbed.



“The rapid proliferation of gold mining inside peatlands appears to be of such scope as to be an existential threat to the entire peatland complex,” wrote Householder. The numbers and the geographic pattern point in the same direction.



The team also tracked where mining is advancing. An outward front has been pushing into the alluvial plain at about 330 feet per year, and that front is reaching the peat rich margins where swamps are most common.



<h2 class="wp-block-heading" id="h-why-mining-is-pushing-into-peatlands">Why mining is pushing into peatlands</h2>



Rivers are the main highways in this part of the Amazon, so early mines hugged the banks. 



As miners followed gold bearing sediments inland, access paths, machinery, and makeshift camps increased, lowering the barrier to work in wetter ground.



Peatlands sit on the outer edges of the river plain where water pools for most of the year. 



Once miners arrive with pumps and hoses, it gets easier for others to follow, especially where law enforcement relies on boats and cannot easily reach new clearings.



<h2 class="wp-block-heading" id="h-human-driven-destruction">Human-driven destruction</h2>



A long term remote sensing <a href="https://www.mdpi.com/2072-4292/10/12/1903" target="_blank" rel="noreferrer noopener">research</a> record shows that mining has been a major driver of deforestation in southeastern Peru. 



Many operations are small and informal, and the work is a source of income for thousands of families.



Processing often uses mercury, a toxic metal that binds to fine gold particles. 



One river focused <a href="https://pubs.rsc.org/en/content/articlelanding/2015/em/c4em00567h" target="_blank" rel="noreferrer noopener">study</a> documented elevated mercury in sediments and fish downstream of mining hubs and found that a large share of carnivorous fish exceeded health guidelines for mercury in tissue.



Communities that rely on river fish face real exposure risks. This adds a public health layer to the climate and ecosystem costs of tearing up peat.



<h2 class="wp-block-heading" id="h-how-mining-made-this-carbon-bomb">How mining made this carbon bomb</h2>



The researchers combined annual vegetation change with a classifier that separates mining from other forest losses. That approach reduced false alarms from seasonal flooding or quick regrowth after storms.



They then overlaid those mine maps with peat maps to see where pits and ponds overlap organic soils. That allowed them to calculate both the area lost and the likely carbon released.



Peat stores carbon more densely than nearby upland forests. When miners dig pits, drain water, or burn cleared vegetation, oxygen speeds up decay and carbon escapes into the air.



Even small patches can have outsized impacts because a few feet of peat can hold as much <a href="https://www.earth.com/news/carbon-atoms-in-your-body-took-a-400000-light-year-journey-through-space/">carbon</a> as a much larger area of non peat forest. That is why a few hundred hectares of loss matter.



<h2 class="wp-block-heading" id="h-what-happens-next">What happens next</h2>



The results point to three priorities that do not require new technology. 



Map the edges of active peatlands at high resolution, monitor hot spots in near real time, and keep heavy equipment out of places where peat depth is greatest.



Local voices and science can work together to steer enforcement and restoration budgets to the areas of highest risk. 



Peat that stays wet and shaded keeps its carbon, and that is the simplest way to avoid adding more heat trapping gases to the air.



The study is published in <a href="https://iopscience.iop.org/article/10.1088/1748-9326/adb868" target="_blank" rel="noreferrer noopener">Environmental Research Letters</a>.



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Ticking 'carbon time bomb' has been unleashed in the Amazon rainforest by gold miners

Gold mining in Peru has moved into sensitive wetland areas and is releasing a lot of stored carbon. These wetlands are peatlands, waterlogged soils built from partly decayed plants that lock away carbon for centuries. Peat loss turns a slow natural carbon vault into a fast source of emissions. That is why scientists are sounding the alarm about new mining scars in remote corners of the Amazon. Peatlands, carbon, and mining Peatlands hold an outsized share of the world’s soil carbon and help stabilize climate over long...

Fresh,Tomato

New research published by <a href="https://www.frontiersin.org/">Frontiers</a> has found something very interesting. A certain variety of tomato has fruits that can use chemical and hormonal signaling to notify the rest of the plant when they're attacked by caterpillars. 

"We usually forget that a plant's fruits are living and semiautonomous parts of their mother-plants, far more complex than we currently think," said Dr. Gabriela Niemeyer Reissig of the Federal University of Pelotas.

"Since fruits are part of the plant, made of the same tissues of the leaves and stems, why couldn't they communicate with the plant, informing it about what they are experiencing, just like regular leaves do?"

"What we found is that fruits can share important information such as caterpillar attacks--which is a serious issue for a plant--with the rest of the plant, and that can probably prepare other parts of the plant for the same attack."

To study signaling of tomato plants, the researchers measured the electrical responses of the plant before, during and after herbivory by insects for a 24 hour period. The signals before and after the caterpillars munched on the tomatoes were different, showing that some sort of electrical signaling was taking place. 

The results showed an overall picture of signaling, not a narrow view of specific signals. However, the techniques used in the study can be replicated for a closer look in the future. Dr. Reissig is hopeful this study will lead to more research and important results,   

"If studies like ours continue to advance and the techniques for measuring electrical signals in open environments continue to improve, it will be possible to detect infestation of agricultural pests quite early, allowing for less aggressive control measures and more accurate insect management," said Dr. Reissig.

"Understanding how the plant interacts with its fruits, and the fruits among themselves, may bring insights about how to 'manipulate' this communication for enhancing fruit quality, resistance to pests and shelf life after harvest."

The study is published in the journal <a href="https://www.frontiersin.org/journals/sustainable-food-systems">Frontiers in Sustainable Food Systems</a>.

---

By <a href="http://zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Tomato fruit warns the rest of the plant when attacked

New research published by Frontiers has found something very interesting....

In a new study led by <a href="https://www.northwestern.edu/">Northwestern University</a>, experts have investigated various foods that may protect against severe COVID-19 infection. The researchers found that drinking at least two to three cups of coffee per day lowers the risk of falling ill with COVID-19 by about one-tenth.

"Nutritional status influences immunity but its specific association with susceptibility to COVID-19 remains unclear. We examined the association of specific dietary data and incident COVID-19 in the UK Biobank (UKB)," wrote the study authors.

The team analyzed the records of 40,000 British adults in the UK Biobank. They looked at baseline diet factors including daily intake of coffee, tea, oily fish, processed meat, red meat, fruit, and vegetables. 

"Individual COVID-19 exposure was estimated using the UK’s average monthly positive case rate per specific geo-populations. Logistic regression estimated the odds of COVID-19 positivity by diet status adjusting for baseline sociodemographic factors, medical history, and other lifestyle factors," explained the researchers.

The study produced evidence to suggest that the consumption of coffee provides protection  against the virus, even among some individuals who were known to have been exposed. The researchers believe that coffee contains health-boosting plant chemicals that may turbocharge the immune system.

The results of the analysis indicate that eating vegetables also lowers the risk of developing COVID-19, as well as being breastfed as a baby. By contrast, the regular consumption of processed meat like bacon and sausage appears to increase the risk of severe COVID-19 infection. In addition, the experts found that tea and fruit did not have a significant effect. 

"Although these findings warrant independent confirmation, adherence to certain dietary behaviors may be an additional tool to existing COVID-19 protection guidelines to limit the spread of this virus," concluded the researchers.

The study is published in the journal <a href="https://www.mdpi.com/journal/nutrients">Nutrients</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

A daily dose of coffee may protect you from COVID-19

In a new study led by Northwestern University, experts have...

Rising temperatures and ozone levels are changing the way that plant roots interact with the soil and promoting carbon loss, according to a new study from <a href="https://www.ncsu.edu/">NC State University</a>. The researchers found that both climate factors have a detrimental effect on soybean plant roots, in particular, and their symbiotic relationship with microorganisms in the soil.

Under the condition of higher levels of both warming and ozone, the experts observed few changes to the plant shoots aboveground, but concerning modifications underground. The plants lost their ability to sequester carbon, releasing it into the atmosphere as a greenhouse gas.

"The ability to sequester carbon is very important to soil productivity - in addition to the detrimental effects of increasing greenhouse gases when this carbon escapes," said study co-author Professor Shuijin Hu.

The study was focused on the role of specific organisms - arbuscular mycorrhizal fungi (AMF) - in promoting chemical interactions that hold carbon in the ground by preventing the decomposition of soil organic matter. 

Arbuscular mycorrhizal fungi are present in the roots of about 80 percent of all terrestrial plants. These organisms take carbon from plants and provide nitrogen and other soil nutrients that plants need in order to grow.

For their investigation, the researchers set up plots of soybeans with increased air temperatures of about three degrees Celsius, plots with higher levels of ozone, plots with higher levels of both warming and ozone, and control plots with no modifications. 

The field experiments revealed that rising temperatures and ozone levels make soybean roots thinner as they attempt to preserve their resources and nutrients.

According to Professor Hu, soybean cultivars are often sensitive to ozone levels. Ozone has recently declined in the United States but has increased in areas of rapid industrialization like India.

"Ozone and warming have been shown to be very stressful to a lot of crops - not just soybeans - and a lot of grasses and tree species," said Professor Hu. "Ozone and warming make the plants weak. Plants try to maximize nutrient uptake, so their roots become thinner and longer as they need to exploit the sufficient volume of soil for resources." 

"This weakness results in a reduction of AMF and faster root and fungal hyphal turnovers, which stimulates decomposition and makes carbon sequestration more difficult. These cascading events may have profound effects underground, although the plant shoots appear normal in some cases."

Professor Hu said he was surprised that the plant shoots were not greatly affected by the stresses of warming and ozone. Perhaps even more surprising, he said, was that more warming and ozone changed the type of AMF that colonized soybean plants.

The study is published in the journal <a href="https://advances.sciencemag.org/">Science Advances</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Ozone alters the behavior of plant roots

Rising temperatures and ozone levels are changing the way that...

Psilocybin - the active ingredient in psychedelic mushrooms - has long been a recreational drug. A growing collection of research shows that psilocybin has huge potential as an antidepressant, yet not much has been known about how the drug impacts the brain or how long it may be effective. 

A study published by <a href="https://www.yale.edu/">Yale</a> scientists is shedding new light on this mysterious drug. The experts report that in test mice, psilocybin induces a long-lasting increase in connections between neurons. 

"We not only saw a 10 percent increase in the number of neuronal connections, but also they were on average about 10 percent larger, so the connections were stronger as well," explained study senior author Professor Alex Kwan.

A scanning laser microscope was used to look at mouse brain tissue. Within 24 hours of psilocybin being administered, the experts found a growth in dendritic spines. Tracking these changes in living mice, the scientists discovered the new growth was still present a month later. 

Mice subjected to stress also showed improved behavior after the drug was administered. The change in behavior makes sense as dendritic spines are spur-like growths on nerve cells that aid in the connections between neurons and the basic function of the brain.  

Psilocybin users have long reported mystical experiences and profound feelings after using the drug. The "magic mushrooms" that contain the drug have also been used by Native American religions. It may be that these deep feelings and experiences are simply a product of increased connectivity in the brain. 

The big surprise for the researchers was not that the drug was effective, but that it was effective for so long after just a single dose. What more secrets does this drug hold? 

The results suggest that psilocybin can potentially treat depression without the need for a daily pill, considering the transformative changes induced by small doses of the drug. The secret could be that psilocybin changes the brain structures to contain new experiences.  

The study is published in the journal <a href="https://www.cell.com/neuron/home">Neuron</a>.

---

By <a href="http://zachfitzner@yahoo.com">Zach Fitzner </a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Psychedelic mushrooms and a cure for depression

Psilocybin - the active ingredient in psychedelic mushrooms - has...

The grass that we depend upon for agriculture relies on healthy <a href="https://www.earth.com/news/cities-have-their-own-unique-collection-of-bacteria-and-viruses/">bacteria</a> to survive climate change, according to a new study from the <a href="https://www.umass.edu/">University of Massachusetts Amherst</a>. The researchers have discovered that the ability of agricultural grasses to endure drought is directly linked to the health of the microbial community living in their leaves, stems, and seeds.

"Microbes do an enormous amount for the grasses that drive the world's agriculture," said study lead author Emily Bechtold. "They protect from pathogens, provide the grass with nutrients such as nitrogen, supply hormones to bolster the plant's health and growth, protect from UV radiation and help the grass manage drought." 

Prior to this research, it was not very well understood how grass and its microbiome supported one another. Furthermore, not a lot has been known about the effects of drought on bacterial communities.

Considering that more than half of all agriculture is grass-related, the bacteria that live on grass have a major impact on food security and economic development.

"The goal of this research is to be able to manage the interactions between plants and the bacteria they host in order to support a truly sustainable agriculture," explained study senior author Professor Klaus Nüsslein.

For their investigation, the UMass Amherst researchers focused on two different types of grasses, including those that are found in temperate zones and those that are predominant in tropical regions. 

The researchers grew the temperate and tropical grasses in two different greenhouses that mimicked natural climate conditions. After they were grown, the grasses were divided into three sub-groups with either optimal climate conditions, mild drought conditions, or severe drought conditions.

The experts analyzed and compared the DNA of the bacteria found across all six groups. The analysis revealed that when the bacteria showed signs of drought-induced stress, the plants did as well. 

As expected, the tropical grasses were better able to withstand drought than the temperate grasses. Under severe drought, however, all of the bacterial communities exhibited significant shifts. 

The extremely dry conditions led to fewer bacteria overall and less diversity across the microbiomes. Furthermore, in some cases, severe drought triggered an increase in the number of bacteria that can be harmful to grass.

On the bright side, a few potentially beneficial bacteria were shown to thrive under mild drought conditions. According to Bechtold, the research indicates that plans to actively support and biofertilize with these beneficial bacteria could be the key to weathering the drought conditions that will become more widespread in the coming decades. 

The study is published in the journal <a href="https://journals.asm.org/journal/aem">Applied and Environmental Microbiology</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Agricultural grasses need healthy bacteria to survive drought

The grass that we depend upon for agriculture relies on...

Flower evolution seems to be influenced by the various animals that visit, according to a new study from the <a href="https://www.tsukuba.ac.jp/en/">University of Tsukuba</a>. The researchers have proposed a new theory that trade-offs caused by different visitors play a central role in shaping floral <a href="https://www.earth.com/news/the-biodiversity-crisis-will-take-millions-of-years-to-recover-from/">diversity</a>.

When it comes to interactions between animals and flowers, some visitors are beneficial, like pollinators, while others can be detrimental. As a result, different selection pressures influence flower traits such as scent or color. 

"On the basis of this theory, you'd expect that flowers would mostly be visited by one particular group of pollinators," said study lead author Professor Kazuharu Ohashi. "But flowers often host many different visitors at the same time and flowers appear to meet the needs of multiple visitors. The question we wanted to answer is how this happens in nature."

In the case where a scent attracts one pollinator but deters another, the flower would attempt to accommodate the best pollinator. 

For example, diurnal bees and nocturnal moths can both pollinate goat willow, yet they prefer different smells. The researchers explained that balancing the demands of multiple visitors involves trade-offs.

The experts developed a conceptual framework to examine different types of trade-offs, as well as how flower evolution may be affected. Next, the team analyzed relevant studies to determine whether the research supported the proposed framework.

The researchers discovered a variety of strategies for mitigating trade-offs. In the case of goat willow, flowers produce different scents during the day and night, and therefore attract both pollinators. Furthermore, floral color can change to attract both bees and flies. 

All of the strategies that were mentioned by the researchers involved acquiring novel combinations of traits to attract, or deter, different visitors.

"Most flowers are ecologically generalized and the assumption to date has been that this is a suboptimal solution," said Professor Ohashi. "But our findings suggest that interactions with multiple animals can actually be optimized by minimizing trade-offs in various ways, and such evolutionary processes may have enriched the diversity of flowers."

The researchers predict that future studies will find that the structure of flower-visitor communities and the associated trade-offs have played critical roles in flower evolution.

"Identifying convergent adaptations to particular community contexts may help us to understand better the evolutionary link between diverse floral phenotypes and their visitors.'

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/1469185x">Biological Reviews</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Flower evolution is influenced by the animals that visit

Flower evolution seems to be influenced by the various animals...

In the <a href="https://bit.ly/3G3MiUQ" target="_blank" rel="noopener">Internet of Nature Podcast</a>, Dr. Nadina Galle speaks with entrepreneurs and innovators who are working on the front lines to build greener and healthier cities. The ten-part series concludes with <a href="https://www.linkedin.com/in/eric-ralls/" target="_blank" rel="noopener">Eric Ralls</a>, Founder of Earth.com. 

As a serial entrepreneur, Ralls has long aspired to merge technology with a love for nature and our planet. This is a passion that he shares with <a href="https://www.nadinagalle.com/" target="_blank" rel="noopener">Dr. Galle</a>, an award-winning environmental scientist and ecological engineer who is focused on improving the health of urban ecosystems.

"As an ecological engineer, driven by a love for ecology and a fascination with technology, I research, design, and pilot emerging technologies to build better urban ecosystems for people and nature," said Dr. Galle. "A framework I call the '<a href="https://www.nadinagalle.com/#Internet-of-nature-IoN" target="_blank" rel="noopener">Internet of Nature</a>.'"

According to Ralls, the ultimate goal is to map every plant species on Earth by 2022. He says it took five years just to figure out how to build the app, because the technology was not yet available. The solution came in a form of artificial intelligence called machine learning.

The app can now identify 600,000 plants translated in more than 37 languages. It is used every day in over 200 countries.

"The entire database will be open source for the scientific community as our gift to humanity to try to help understand the impact of climate change on the plant kingdom."

In specific areas, says Ralls, we will be able to see where plants are blooming later or earlier - or disappearing altogether in certain regions. 

Ralls notes that there is no limit to what can be done with the data they have accumulated. In addition, his science media company Earth.com is building a page for every plant and animal on the planet. 

"I like to say that, when the aliens decide to come visit us, then they should park it in orbit, and visit Earth.com to learn about all the different beings," says Ralls. "A small guidebook to life on Earth," adds Dr. Galle.

As for the app, what started out as a simple utility app has evolved into a full blown lifestyle app. Not only can you identify a plant using the app, but now you can share it, get pointers on how to take care of it, and even buy it with just a click. 

The newest version, which will launch in April, will include a wealth of knowledge on plant care for thousands of species provided by <a href="https://www.lovethegarden.com/uk-en">Evergreen Garden Care</a>, the largest international company of its kind. 

Eric Ralls is very excited to have partnered with 1,200 botanic gardens all over the world to distribute the app on social media. Through a partnership with <a href="https://www.bgci.org/">BCGI</a> - the world's largest botanic gardens organization - experts will ultimately be able identify where certain plants are going extinct and send teams in to protect and revitalize these species. 

"Nature is just incredibly, overwhelmingly amazing in every regard, and you can literally learn something new about it every day," says Ralls. 

"Thankfully right now we are being forced into learning as much about the planet as we can to circumvent, and hopefully reverse, the horrible devastation that climate change is already causing in so many places around the world." 

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Building a healthier planet through the "Internet of Nature" with Eric Ralls

In the Internet of Nature Podcast, Dr. Nadina Galle speaks...

In a new study from the <a href="https://www.jic.ac.uk/">John Innes Centre</a>, experts have discovered how plants cope with life in the deep shade of a dense <a href="https://www.earth.com/news/deforestation-has-darkened-coastal-waters-off-belize/">forest</a>, where light and other resources are very limited.  Typically, even the threat of shade causes plants to elongate in an attempt to outgrow each other. 

"Shade-avoiding plants can detect the presence of neighboring vegetation and evoke escape responses before canopy cover limits photosynthesis," explained the researchers. "Rapid stem elongation facilitates light foraging and enables plants to overtop competitors."

In the deep shade, however, neighboring plants become less competitive and more cooperative. 

"Plants can detect the proximity and density of neighboring vegetation using phytochrome photoreceptors," wrote the study authors. 

"In shade-sensitive species, canopy cover drives stem elongation, facilitating light foraging. In deep shade, where resources are severely limited, excessive elongation growth can be detrimental to plant survival."

The researchers set out to investigate how plants prevent elongated growth under deep shade conditions. The study revealed that when plants detect deep shade, this changes the expression of genes in certain parts of their circadian clocks. As a result, stem elongation is suppressed.

"The majority of plant shade avoidance research focuses on early neighbor detection and moderate shading. This work reveals new insights into how plants adapt to very deep shade, where resources are severely limited," said Professor Kerry Franklin of the University of Bristol.

According to the researchers, their work identifies a previously unknown role for the circadian clock in regulating plant development, and the findings have implications for both natural plant populations and crops.

"The biological clock of plants is a key regulator of their development and fitness," said Professor Antony Dodd. "This work sheds new light on a new role for circadian rhythms in adapting plants to competition with other plants in their environments."

The study is published in the journal <a href="https://www.pnas.org/">Proceedings of the National Academy of Sciences</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Plants become less competitive in the deep shade

In a new study from the John Innes Centre, experts...

Plant growth has been stunted by <a href="https://www.earth.com/news/how-do-arabian-camels-survive-for-weeks-without-water/">water</a> constraints in a warming climate, according to a new study led by <a href="https://www.iu.edu/index.html">Indiana University</a>. The researchers analyzed vegetation growth in the Northern Hemisphere over the past 30 years, and identified a troubling link between rising temperatures and plants becoming increasingly water-limited.

"Without water, living things struggle to survive, including plants," said study senior author Professor Lixin Wang. "Changes in vegetation response to water availability can result in significant shifts of climate-carbon interaction."

In collaboration with a multidisciplinary research team, experts in the School of Science at IUPUI set out to examine vegetation constraints on a global scale. Despite a growing need to predict plant growth trends in response to climate change, vegetation constraints have been largely unknown.

"Global temperature and the concentration of atmospheric CO2, or carbon dioxide, have been increasing," said Professor Wang. These changes will cause increased atmospheric water demand, more extreme hot days, and more frequent drought events, explained the researchers. 

While these factors suggest that vegetation growth suffers an increasing amount of water stress in a warming climate, Professor Wang noted that quantifying these changes at large spatial and temporal scales is challenging.

To overcome this challenge, the researchers used satellite remote sensing data and data from 1982 to 2015.

"We developed our own metrics to indicate water constraints and then examined the changes in the metrics," study first author Wenzhe Jiao. 

"The study is quite computationally extensive since we examined the relationship between vegetation growth and water deficit at each grid cell over the whole extratropical Northern Hemisphere - 604,800 data points each year - over more than 30 years."

The study produced strong evidence of a widespread, significant increase in water vegetation constraint in the Northern Hemisphere. Some regions, including the Great Plains in the United States, were comparatively worse than others.

"Increasing water constraints on vegetation productivity may drive a shift from a period of increasing land carbon sink strength to a period in which climate change is reducing land carbon sink strength," said Professor Wang.

"Our research shows that increasing water constraints will likely limit continuous vegetation growth, thus slowing down the removal of CO2 from the atmosphere by plants," said Jiao.

"The results emphasize the need for actions that could slow down CO2 emissions," said Professor Wang. "Without that, water constraints impacting plant growth - and the weakening of vegetation's ability to removal of CO2 from the atmosphere -- are unlikely to slow."

The study is published in the journal <a href="https://www.nature.com/ncomms/">Nature Communications</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Water constraints are stunting vegetation growth in the Northern Hemisphere

Plant growth has been stunted by water constraints in a...

Experts have demonstrated an efficient method for boosting yeast to make <a href="https://www.earth.com/news/scientists-seek-use-for-plant-byproduct-of-biofuels/">biofuels</a> from corn stover, the parts of a corn plant that are typically discarded.

Only a small portion of a corn plant is actually used, and the rest is discarded as waste. If the leftover leaves, stalks and cobs could be fermented into ethanol like corn kernels, the corn stover could be a large-scale, renewable source of fuel.

Study co-author Gerald Fink is a professor at the Massachusetts Institute of Technology (MIT) and a member of the <a href="https://wi.mit.edu/">Whitehead Institute for Biomedical Research</a>.

"Stover is produced in huge amounts, on the scale of petroleum," said Professor Fink. "But there are enormous technical challenges to using them cheaply to create biofuels and other important chemicals."

In collaboration with Professor Gregory Stephanopolous, Professor Fink changed the growth medium conditions of the baker's yeast Saccharomyces cerevisiae. The experts demonstrated that the modified yeast could be used to produce ethanol and plastics from corn stover. 

The biofuels industry relies on organisms such as yeast to convert the sugars glucose, fructose and sucrose in corn kernels to ethanol, which can be mixed with traditional gasoline to fuel vehicles.

Corn stover are full of sugars that can also be converted into biofuels, but the plants hold on to the cellulose molecules very tightly. An acidic solution can be used to help break down the tough casings that hold the sugars, but a consequence of using the acid is the production of molecules called aldehydes, which are toxic to yeast.

"These toxins are one of the biggest limitations to producing biofuels at a low cost." said Professor Stephanopoulos. To address the issue of aldehydes, the researchers decided to focus on the aldehydes produced when acid is added to break down tough molecules. 

"We don't know the exact mechanism by which aldehydes attack microbes, so then the question was, if we don't really know what it attacks, how do we solve the problem?" Lam said. "So we decided to chemically convert these aldehydes into alcohol forms."

Ultimately, this method was combined with the newly modified yeast. "We essentially channeled the aldehyde problem into the alcohol problem, which we had worked on before," said Lam. "We changed and detoxified the aldehydes into a form that we knew how to handle."

The researchers were able to efficiently make ethanol and even plastic precursors from corn stover, miscanthus and other types of plant matter. 

"We were able to produce a high volume of ethanol per unit of material using our system," said Professor Fink. "That shows that there's great potential for this to be a cost-effective solution to the chemical and economic issues that arise when creating fuel from cellulose-rich plant materials."

The study is published in the journal <a href="https://advances.sciencemag.org/">Science Advances</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Corn stover can produce a high volume of biofuels

Experts have demonstrated an efficient method for boosting yeast to...

Plants and animals are increasingly shifting their ranges northward toward cooler latitudes to cope with climate change and to escape rising temperatures. But in a new study led by the <a href="https://www.exeter.ac.uk/">University of Exeter</a>, researchers have found that many migratory birds are moving plants in the wrong direction through seed dispersal.

The experts report that the majority of plants from European woodlands are dispersed by birds migrating to warmer latitudes in the south, while far fewer are dispersed by birds migrating north. 

The researchers say that this pattern of southward seed dispersal by migratory birds is counterproductive if plants are to adapt to climate change.

"Contemporary climate change is so fast that many plants require dispersal distances far beyond those that normally take place locally," said study lead author Juan Pedro González-Varo of the University of Cádiz.

"This is where migratory birds can play a major role, as they are capable of dispersing seeds over tens of kilometers."

"With this research, we wanted to know the potential of plant species to be dispersed by migratory birds towards future favorable areas."

The research, which was conducted by experts from 13 European institutions, was focused on birds that consume fruits and disperse the seeds. The team analyzed data on the fruiting period of plants and migratory patterns of birds to investigate whether most seeds are being dispersed in cooler or warmer latitudes.

The researchers examined 13 wooded sites, including a total of 949 interactions between 46 bird and 81 plant species.

The study revealed that only 35 percent of the plants from the woodland communities are dispersed by birds that migrate northward in the spring. By contrast, 86 percent of the plants are dispersed by birds migrating to warmer areas in autumn.

"Under climate change, species redistribute themselves to track suitable climate conditions," explained study co-author Dr. Benno Simmons. "As plants cannot move themselves, they require species like birds to disperse their seeds to new areas."

"We wanted to know how well migratory birds might be able to do this. We found that northward dispersal to cooler areas is done by only a small number of migratory bird species, some of which are under hunting pressure."

"Our study emphasises the importance of these species for helping European plant communities experiencing climate change."

According to the study, the birds with the greatest potential to disperse European plants to cooler latitudes are Palearctic species - which spend the winter in central and southern Europe or North Africa - such as robins, blackcaps, and blackbirds.

"Although these are common species, the potential for seed dispersal to the north lies with only a handful of species, some of them heavily hunted in the Mediterranean Basin, both legally and illegally," said González-Varo.

"We believe that our study adds value to these species, since they would be responsible for helping European plant communities respond to climate change."

The study is published in the journal <a href="https://www.nature.com/">Nature</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Birds are moving plants in the wrong direction through seed dispersal

Plants and animals are increasingly shifting their ranges northward toward...

<a href="https://www.earth.com/news/forest-flowers-are-critical-for-the-survival-of-bumble-bees/">Flowers</a> possess an invisible feature that attracts bumblebees, according to a new study led by the <a href="http://www.bristol.ac.uk/">University of Bristol</a>. The experts report that bumblebees may use the humidity of a flower to tell them about the presence of nectar.

The researchers determined that bumblebees are able to accurately detect different levels of dampness next to the surface of the flower.

"Our study shows that bumblebees not only use this sensory information to make choices about how they behave, but are also capable of learning to distinguish between humidity patterns in a similar way to how they learn to recognize the color or smell of a flower," said study co-author Professor Natalie Hempel de Ibarra.

To investigate, the researchers designed artificial flowers with levels of humidity similar to those of flowering plants.

"Bumblebees showed a spontaneous preference for flowers which produced higher floral humidity. Furthermore, learning experiments showed that bumblebees are able to use differences in floral humidity to distinguish between rewarding and non rewarding flowers," explained the study authors.

"Our results indicate that bumblebees are sensitive to different levels of floral humidity. In this way floral humidity can add to the information provided by flowers and could impact pollinator behaviour more significantly than previously thought."

According to study lead author Dr. Michael Harrap, it is known that different species of plants produce flowers that have distinct patterns of humidity, which differ from the surrounding air.

"Knowing that bees might use these patterns to help them find food shows that flowers have evolved a huge variety of different ways of attracting pollinators, that make use of all the pollinators' senses."

"If humidity patterns are important for attracting pollinators, they are likely to be one of several different signals (such as colour, scent and pattern) that a flower is using at the same time, and could help the bee to identify and handle the flower more efficiently," said study co-author Dr. Sean Rands.

"The effectiveness of humidity patterns may depend upon the humidity of the environment around the flower; climate change may affect this environmental humidity, which in turn could have a negative effect on a visiting bee because the effectiveness of the humidity pattern will be altered."

The study is published in the <a href="https://journals.biologists.com/jeb">Journal of Experimental Biology</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Bumblebees are attracted to the humidity of flowers

Flowers possess an invisible feature that attracts bumblebees, according to...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=3Y4eLFNYrKE
</div></figure>



On the unforgiving landscape of North Greenland, temperatures drop and sunlight barely penetrates through the polar winter. It was here, however, that an international team of scientists found <a href="https://www.earth.com/news/predatory-worms-were-terror-beasts-half-a-billion-years-ago/#google_vignette" target="_blank" rel="noreferrer noopener">evidence of sea monsters</a> that would change our understanding of ocean life in the past.



This video captures the discovery of Timorebestia fossils that had been hidden for more than 500 million years in the Sirius Passet formation. The "terror beasts," as they are called, are a hidden chapter in the evolutionary history of <a href="https://www.earth.com" target="_blank" rel="noreferrer noopener">Earth</a>, showing that sophisticated predator-prey interactions occurred much earlier than previously envisioned.



Dr. Jakob Vinther and his research team at the <a href="https://www.bristol.ac.uk/" target="_blank" rel="noreferrer noopener">University of Bristol</a>, in collaboration with researchers at the <a href="https://eng.kopri.re.kr/" target="_blank" rel="noreferrer noopener">Korean Polar Research Institute</a>, braved extreme weather conditions at 82.5 north latitude to locate these giant creatures. Using sophisticated electron microprobe analysis, they revealed the detailed anatomy of the animals, including their muscle and nerve tissues.



The find upsets the traditional timeline of sea predators. Although we've long appreciated that Cambrian oceans were at one time ruled by <a href="https://www.youtube.com/watch?v=jWI3-UgA3_o&amp;list=PL1QLQMW9MWDwpkFOnvgAmu7wT6rZmYqdJ&amp;index=19" target="_blank" rel="noreferrer noopener">arthropods</a>, these discoveries indicate that relatives of arrow worms were first to dominate the seas. These worms were building sophisticated food webs several million years before other predator groups arose.



Each fossil is a story of ancient hunger, with fossil stomach contents revealing these meter-long beasts dined on heavily armored arthropods regularly, cementing their place as the ocean's first apex predators.



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Worms dominated seas before dinosaurs

https://www.youtube.com/watch?v=3Y4eLFNYrKE On the unforgiving landscape of North Greenland, temperatures drop...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=Ow3JH03PqEQ
</div><figcaption class="wp-element-caption">New York is the site of the world's oldest forest.</figcaption></figure>



<h2 class="wp-block-heading" id="h-385-million-year-old-trees-discovered">385-million-year-old trees discovered</h2>



Scientists have uncovered something extraordinary just two hours north of New York City. The <a href="https://www.earth.com/news/worlds-oldest-forest-discovered-close-to-new-york-city/" target="_blank" rel="noreferrer noopener">world's oldest forest</a>, dating back 385 million years, offers a window into how Earth's first complex forests shaped our planet's atmosphere.



Located near <a href="https://townofcairo.com/" target="_blank" rel="noreferrer noopener">Cairo, New York</a>, in Greene County, these weren't merely primitive plants struggling to survive. These were sophisticated trees with root systems remarkably similar to modern forests. This ancient woodland predates dinosaurs by 140 million years.



<h2 class="wp-block-heading" id="h-the-cairo-forest-discovery">The Cairo forest discovery</h2>



385 million years ago, upstate New York was a tropical paradise near the equator. Thanks to continental drift, this ancient forest has traveled thousands of miles to its current location.



The fossil forest sits in an abandoned quarry, roughly half the size of a football field. This represents just a slice of what was likely a massive forest system stretching from New York into Pennsylvania.



Charles Ver Straeten, curator of sedimentary rocks at the <a href="https://www.nysm.nysed.gov/" target="_blank" rel="noreferrer noopener">New York State Museum</a>, made the discovery in 2009. While scouting the former highway department property, his trained eye spotted wandering patterns in the stone that looked like marine features.



<h2 class="wp-block-heading" id="h-revolutionary-age-and-preservation">Revolutionary age and preservation</h2>



The site contains 385-million-year-old rocks with fossilized woody roots forming horizontal patterns up to 18 feet (5.5 meters) wide. As Christopher Berry, a paleobotanist at Cardiff University, explains: "You are walking through the roots of ancient trees."



This discovery pushes back advanced tree evolution by millions of years. The research, published in <a href="https://www.cell.com/current-biology/home" target="_blank" rel="noreferrer noopener">Current Biology</a> in December 2019, fundamentally changes our understanding of when complex forests first emerged.



Researchers believe a massive flood buried the forest floor, creating perfect fossilization conditions. Over millions of years, sediment hardened into rock, preserving these root patterns like nature's time capsule.



<h2 class="wp-block-heading" id="h-meet-archaeopteris-the-first-modern-tree">Meet Archaeopteris: the first modern tree</h2>



The star of this ancient forest is Archaeopteris – not to be confused with the feathered dinosaur Archaeopteryx. This tree was far older and more revolutionary.



William Stein from <a href="https://www.binghamton.edu/" target="_blank" rel="noreferrer noopener">Binghamton University</a> describes the roots as "strikingly modern, essentially what you'd see outside in my yard right now." These weren't simple root systems you'd expect from ancient plants.



Some fossilized roots are six inches (15 centimeters) in diameter, forming 36-foot-wide (11-meter) patterns. These giants grew up to 65 feet (20 meters) tall with five-foot-diameter (1.5-meter) trunks.



<h2 class="wp-block-heading" id="h-climate-changing-impact">Climate-changing impact</h2>



These trees fundamentally changed Earth's environment. Kevin Boyce, a Stanford University geoscientist, explains how their deep roots triggered "weathering," chemical reactions that pulled carbon dioxide from the atmosphere.



This process dropped atmospheric CO2 levels from 10-15 times higher than today to roughly modern concentrations. These ancient trees helped create atmospheric conditions that made complex life possible.



<h2 class="wp-block-heading" id="h-ancient-forest-ecosystem">Ancient forest ecosystem</h2>



The forest was remarkably diverse. Scientists identified Eospermatopteris, palm tree-like plants with short roots that reached 30 feet (9 meters) tall but lacked woody structure. The forest also housed cladoxylopsids and a mysterious third species still being studied.



All reproduced through spores rather than seeds – millions of years before seeds evolved. This tropical environment had no grass, flowers, or flying insects, just towering trees creating Earth's first complex forest canopy.



<h2 class="wp-block-heading" id="h-scientific-significance">Scientific significance</h2>



Before this finding, the Gilboa forest, located 25 miles (40 kilometers) away, held the "oldest forest" title. Cairo's trees are 2-3 million years older, showing that complex forest ecosystems developed much faster than scientists believed possible.



Patricia Gensel, a <a href="https://www.unc.edu/" target="_blank" rel="noreferrer noopener">University of North Carolina</a> paleobotanist, notes: "The size of those root systems is really changing the picture. Even 20 years ago, researchers assumed trees with such complex root systems didn't evolve so early."



The Cairo site presents three unique root systems, suggesting Devonian period forests were diverse ecosystems with different trees occupying different environmental niches, much like today's forests.



<h2 class="wp-block-heading" id="h-modern-preservation-efforts">Modern preservation efforts</h2>



In 2022, New York State Senator Michelle Hinchey secured a $170,000 grant for the town of Cairo to construct specialized fencing around the fossil forest site. The town plans to conduct a feasibility study exploring the possibility of creating an educational center and working lab on-site.



Joe Hasenkopf, chair of the Cairo Planning Board, hopes to partner with educational institutions to create a research facility serving scientists, students, and the public.



<h2 class="wp-block-heading" id="h-lessons-for-today-s-climate">Lessons for today's climate</h2>



Why does a 385-million-year-old forest matter today? It shows how dramatically forests can change Earth's climate. These ancient woodlands created the atmospheric conditions supporting complex life.



Understanding how prehistoric forests transformed the planet helps us appreciate modern forests' critical role in addressing climate change. Forests remain Earth's most effective carbon capture systems.



These prehistoric trees changed Earth's atmosphere by pulling massive amounts of carbon dioxide from the air. As we face modern climate challenges, this ancient forest reminds us of trees' incredible power to transform our planet's environment.



The next time you walk through a forest, remember you're experiencing an ecosystem whose blueprint was established 385 million years ago in upstate New York. These ancient pioneers didn't just survive – they thrived and changed the world forever.



The full study was published in the journal Current Biology.



-----



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Earth's oldest forest found in the United States

https://www.youtube.com/watch?v=Ow3JH03PqEQ New York is the site of the world's oldest...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=prrq8Ql81zk
</div><figcaption class="wp-element-caption">Acid rain and a crisis solved.</figcaption></figure>



<h2 class="wp-block-heading" id="h-why-don-t-we-ever-hear-about-acid-rain-anymore-the-environmental-crisis-that-was-solved">Why don't we ever hear about "acid rain" anymore? The environmental crisis that was solved</h2>



Remember the 1980s when acid rain dominated headlines? Dire warnings about rain eating buildings, killing fish, and destroying forests filled every news cycle. Then, almost like magic, acid rain vanished from public discourse. What happened? Did we actually solve one of the late 20th century's most pressing environmental challenges?



The answer might surprise you. Unlike many environmental issues that drag on indefinitely, acid rain represents one of modern history's most successful ecological recovery stories. It's a tale of science, politics, and technology working together to tackle what seemed impossible.



<h2 class="wp-block-heading">What was acid rain?</h2>



Acid rain isn't regular rain having a bad day – it's precipitation that became significantly more acidic due to air pollution. When power plants, factories, and vehicles burn fossil fuels, they release sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere.



<h2 class="wp-block-heading">The science behind it</h2>



Think of acid rain as nature's chemistry experiment gone wrong. These compounds react with water, oxygen, and other chemicals to form sulfuric and nitric acids. When mixed with water vapor in clouds, they create precipitation with dangerously low pH levels.



While clean rain has a pH of about 5.6, acid rain could drop as low as 4.2 to 4.4 – roughly as acidic as tomato juice or coffee. According to US Geological Survey documentation, Scottish chemist Angus Smith first coined "acid rain" in 1872, but it didn't become a household phrase until the 1960s and 1970s when Swedish scientist Svante Odén documented its devastating effects on Scandinavian lakes and European forests.



<h2 class="wp-block-heading">The crisis at its peak</h2>



During the height of public concern, environmental damage was both widespread and visible. This wasn't some abstract future threat – people could see destruction happening in real-time.



<h2 class="wp-block-heading">Environmental devastation</h2>



The most dramatic impacts were impossible to ignore. Research documented by the Adirondack Lakes Survey Corporation and the New York State Department of Environmental Conservation shows that in the Adirondack Mountains, more than 200 lakes became so acidic they couldn't support fish life. The Adirondack Council reports that 409 lakes once supported brook trout, but many lost their fish populations due to acid rain.



By 1976, when scientists cataloged all acidified lakes in the Adirondack Park, researchers found that half of the lakes over 2,000 feet above sea level had no fish, according to studies published in environmental journals. The acidification process worked like a slow-motion disaster. As acid rain fell into watersheds, it gradually lowered pH levels. Fish couldn't survive in acidic water, and their food sources died off too.



Trees at high elevations showed stress directly linked to acid rain. It weakened them by leaching nutrients and making them susceptible to disease. Historical records show Germany's Black Forest saw nearly half its trees damaged by the mid-1980s.



<h2 class="wp-block-heading">Economic impact</h2>



Acid rain wasn't just environmental – it was expensive. Acidic precipitation corroded infrastructure, buildings, and monuments. Historic stone structures deteriorated at accelerated rates. Tourism suffered as lakes became fishless and forests declined. EPA economic analyses from the period documented repair costs mounting into billions annually.



<h2 class="wp-block-heading">The solution: government action and technology</h2>



Transformation from crisis to success required unprecedented cooperation between governments, industries, and environmental groups.



<h2 class="wp-block-heading">The Clean Air Act of 1990</h2>



The turning point came with the Clean Air Act Amendments of 1990, signed by President George H.W. Bush. This represented a fundamentally new approach to environmental regulation, as documented in EPA historical records.



<h2 class="wp-block-heading">Cap-and-trade success</h2>



Instead of mandating specific technologies, the 1990 amendments introduced something revolutionary: a cap-and-trade system for sulfur dioxide emissions. EPA program documentation shows this market-based approach set overall limits but allowed companies to trade emission allowances.



The genius was harnessing market forces to find cost-effective pollution reduction. Companies reducing emissions cheaply could sell excess allowances to those facing higher costs. Research published in environmental economics journals and EPA progress reports shows this resulted in dramatic SO2 reduction at a fraction of projected costs.



<h2 class="wp-block-heading">Technology advances</h2>



Policy provided the framework, but technology made reductions possible. Studies in atmospheric science journals document the widespread adoption of flue gas desulfurization systems ("scrubbers") that removed sulfur dioxide before it reached the atmosphere. By the 2000s, new installations could remove over 95% of SO2 emissions, according to EPA technical reports.



The push coincided with cleaner energy development. Natural gas produces fewer sulfur compounds than coal. Wind and solar, emerging in the 1990s, captured growing market share, reducing reliance on high-sulfur coal.



<h2 class="wp-block-heading" id="h-why-we-don-t-hear-about-it-today">Why we don't hear about it today</h2>



Why did acid rain disappear from headlines? Simple: the problem was largely solved.



<h2 class="wp-block-heading">Success doesn't make news</h2>



There's an old journalism saying: "If it bleeds, it leads." Environmental success stories don't generate urgency like crisis reporting. Media attention shifted to other challenges: climate change, plastic pollution, and biodiversity loss. There's only so much environmental anxiety the public can absorb, and newer concerns replaced acid rain.



<h2 class="wp-block-heading">Mission accomplished</h2>



The primary reason is beautifully simple: interventions worked. EPA monitoring data shows sulfur dioxide emissions dropped over 90% since 1990. Academic research published in environmental science journals confirms pH levels in formerly affected areas returned closer to normal. This represents one of history's most dramatic environmental recoveries. Studies by the Adirondack Lakes Survey Corporation show fishless lakes now support healthy populations. Forests recovered, and building damage slowed dramatically.



<h2 class="wp-block-heading" id="h-is-it-really-gone">Is it really gone?</h2>



The crisis is largely resolved, but monitoring data shows the problem isn't completely eliminated – it's managed to acceptable levels. Some areas still experience occasional events during high pollution periods. International environmental research indicates that rapidly industrializing Asian countries face similar problems to what we experienced decades ago, though they're implementing successful strategies.



EPA research shows nitrogen oxide emissions proved more challenging than sulfur dioxide, coming from vehicles and mobile sources. Climate science studies suggest changing weather patterns add complexity to how acid rain forms and falls.



<h2 class="wp-block-heading">What this teaches us</h2>



The acid rain experience proves that seemingly intractable environmental problems can be solved with scientific understanding, political will, and technological innovation. Environmental monitoring data shows recovery speed was remarkable – within a decade, measurable improvements appeared in air quality and ecosystem health.



Success came from bipartisan support across party lines. Policy analysis studies show the market-based approach appealed to those preferring economic incentives while achieving environmental goals. This support created lasting policy surviving political changes.



<h2 class="wp-block-heading">Conclusion</h2>



Acid rain's disappearance from public consciousness represents environmental science's greatest success stories. Through effective regulation, technological innovation, and international cooperation, we transformed an overwhelming crisis into a manageable challenge.



Today's silence isn't because we forgot – it's because we solved it. The 1990 Clean Air Act, combined with technology and energy market changes, reduced acid rain emissions over 90%, according to comprehensive EPA data analysis.



This success offers hope for current challenges. It proves complex problems can be solved when science, policy, and technology work together. As we face climate change and plastic pollution, acid rain reminds us that dramatic positive change is possible.



Next time someone asks whether environmental regulations work, remember acid rain. It's proof that sometimes, we get it right.



<hr class="wp-block-separator has-alpha-channel-opacity"/>



Sources: This article draws from EPA official documentation and progress reports, peer-reviewed research published in environmental and atmospheric science journals, historical data from the Adirondack Lakes Survey Corporation, New York State Department of Environmental Conservation records, US Geological Survey publications, policy analysis studies, and environmental monitoring data collected over three decades.



<h2 class="wp-block-heading">Frequently Asked Questions</h2>



1. Is acid rain completely gone? No, but EPA monitoring shows it's reduced to manageable levels. US sulfur dioxide emissions dropped over 90% since 1990, making acid rain much less severe than the 1980s crisis.



2. How long did solving take? Environmental monitoring data shows significant improvements began within 5-10 years of 1990s emission controls. Full ecosystem recovery took longer – some areas need 20-30 years for complete recovery.



3. What made the solution successful? Clear scientific understanding, visible damage motivating action, bipartisan support, available technology, and innovative market-based policies like cap-and-trade.



4. Do other countries have acid rain problems? Yes, particularly rapidly industrializing Asian countries. However, international environmental research shows many implement similar successful control strategies.



5. Could acid rain return? Potentially, if regulations weaken or we return to high-sulfur coal without controls, though effects would take years to become severe according to environmental projections.



6. Can you recommend any teaching tools on the subject of "acid rain"? The United States Environmental Protection Agency produced a wonderful teacher's guide for ages 14 and under that you can find on the EPA website here: <a href="https://www.epa.gov/sites/default/files/2017-03/documents/teachersguide.pdf" target="_blank" rel="noreferrer noopener">https://www.epa.gov/sites/default/files/2017-03/documents/teachersguide.pdf</a>



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The environmental problem we actually solved

https://www.youtube.com/watch?v=prrq8Ql81zk Acid rain and a crisis solved. Why don't we...

Fresh,Radish,Harvest,On,Soil,In,Garden.

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://youtu.be/Fi2OeEwuzRM?si=vTyd2m9FMmtyWkex
</div></figure>







Mid-July is an opportune time to kick-start a thriving fall garden, and this guide lays out the best vegetables and herbs to plant now for a fruitful autumn harvest. 



Fast-growing leafy greens such as spinach, lettuce, kale, and arugula perform especially well in the waning summer heat, with harvests beginning as soon as 30 days. 



These cool-season crops relish the transition into fall, offering repeated yields with cut-and-come-again methods.



Root vegetables like radishes, carrots, and beets also excel during this period. Radishes deliver satisfaction in under a month, while carrots and beets mature in about two months. Employing succession planting ensures a continuous stream of produce deep into the cooler months. 



For a boost of fresh flavor, herbs like cilantro, basil, dill, and chervil are excellent picks. These heat-loving varieties flourish in July’s warmth and are harvest-ready in about 30 days, especially when sown continuously.



Gardeners in zones 6 through 9 can benefit from planting bush beans and snap peas, which don’t require trellising and are ideal for compact plots. 



Maturing in 50–60 days, they’re a smart choice for quick, protein-rich harvests. For those in hotter regions, heat-tolerant crops such as okra and southern peas provide reliable yields and thrive in scorching conditions.



This guide emphasizes more than crop selection—it highlights the importance of timing, soil preparation, and ongoing sowing techniques. 



With thoughtful planning and attention to regional climate needs, even late-summer gardeners can enjoy fresh salads, hearty stews, and the satisfaction of a robust, homegrown harvest well into fall.



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What to plant in your garden in mid-July

https://youtu.be/Fi2OeEwuzRM?si=vTyd2m9FMmtyWkex Mid-July is an opportune time to kick-start a thriving...

Green,Ecoduct,Over,An,Empty,Highway,During,Sunset.

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A new long-term study in Monkton, Vermont, reveals that wildlife tunnels significantly reduce amphibian road mortality during seasonal migrations. 



Frogs and salamanders often cross roads to reach breeding ponds each spring, but many are killed by vehicles. 



Researchers from the <a href="https://www.uvm.edu/" target="_blank" rel="noreferrer noopener">University of Vermont</a>, in collaboration with local citizens and the Vermont Agency of Natural Resources, installed two underpass tunnels in 2015. 



Over a 12-year monitoring period, they observed an 80.2% reduction in amphibian deaths, and up to 94% for non-climbing species like salamanders. 



The study used a before-after-control-impact design and documented more than 5,200 amphibians, highlighting the tunnels’ effectiveness even in nearby buffer zones.



Funded at $342,397 - far cheaper than wildlife crossings for large mammals - the project showcased the power of community-led conservation.



Local groups initiated the effort after observing mass amphibian deaths. Wildlife cameras later captured over 2,200 amphibians using a tunnel in just one spring, along with other species like raccoons and bobcats, indicating wider ecosystem benefits.



This marks the first peer-reviewed, long-term data set in the northeastern U.S. confirming amphibian-specific underpasses work. 



The study urges transportation departments to incorporate these designs into road planning and highlights how community action, thoughtful infrastructure, and persistence can make a real difference for biodiversity.



The full study was published in the <a href="https://linkinghub.elsevier.com/retrieve/pii/S1617138125000780" target="_blank" rel="noreferrer noopener">Journal for Nature Conservation</a>.



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Wildlife tunnels save millions of amphibians

https://youtu.be/XYgiPzmNBTU?si=eFYY7gPHU1JznLvU A new long-term study in Monkton, Vermont, reveals that...

Scientists are transforming chocolate into a functional food by infusing it with probiotics and prebiotics, aiming to create a treat that satisfies cravings while supporting gut health. 



The challenge lies in maintaining chocolate's beloved texture and flavor while adding health benefits.



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Probiotics - beneficial microbes that balance gut bacteria and aid digestion - are typically fragile and can be destroyed by stomach acid or processing. 



Prebiotics act as food for these microbes, helping them thrive. Together, they form "synbiotics," a powerful health combination.



Researchers Smriti Gaur and Shubhi Singh from India's Jaypee Institute of Information Technology took an innovative approach, using natural prebiotics like corn and honey instead of complex processing methods. 



They created five chocolate varieties: a control and four synbiotic versions containing different combinations of prebiotics, probiotics (Lactobacillus strains), and flavor enhancers (cinnamon or orange).



Laboratory simulations of human digestion showed the probiotics remained viable for over five hours, suggesting they could survive long enough to benefit gut health.



Taste tests were positive, with researchers particularly enjoying the orange-flavored variety, describing it as having "vibrant citrus notes" complementing the "rich cocoa" with a "luxurious" texture.



This research represents just the beginning. With further refinement of strains, textures, and flavors, chocolate could evolve beyond mere indulgence to become a functional food that nourishes while it delights.



The study is published in the journal <a href="https://pubs.acs.org/doi/10.1021/acsfoodscitech.4c00741" target="_blank" rel="noreferrer noopener">ACS Food Science &amp; Technology</a>.

Is chocolate the next nutritional powerhouse?

Scientists are transforming chocolate into a functional food by infusing...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

[sendtonews key="3upvlAaHgO-2256633-12187" type="single"] Today’s Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

How does salt makes things taste better?

[sendtonews key="X0f6OHYoI4-2310561-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Santiago, Chile in South America

[sendtonews key="JRaP49ISmm-2357509-12187" type="single"] Today’s Video of the Day from the...

Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

[sendtonews key="e4ZG0Jawp3-2374785-12187" type="single"] Astronomers at Johns Hopkins University have created...

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Lesotho: Africa's "Kingdom in the Sky"

[sendtonews key="uV9Lh2fQbV-1760058-12187" type="single"] Lesotho: Africa's "Kingdom in the Sky" Today’s...

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The city of Dublin on Ireland's east coast

[sendtonews key="qjvhBOBnY8-2426650-12187" type="single"] Today's Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The province of Zaragoza in northeast Spain

[sendtonews key="oL4FnPTGCV-2384527-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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The rapid retreat of the Columbia Glacier

[sendtonews key="0879czfG3k-1785905-12187" type="single"] Today’s Video of the Day from NASA...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The Pyrenees Mountains in southwest Europe

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Two distant planets may be "water worlds"

[sendtonews key="QIoVYJqRBi-2434608-12187" type="single"] Today's Video of the Day from NASA...

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Satellites reveal how Earth's systems are interconnected

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

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