Many people love their horses like family. New research shows that horses can serve as meaningful attachment figures for humans in ways that look a lot like our bonds with pets and even close partners. 



The study also introduces a survey that can reliably measure how attached someone is to their horse.



Researchers from the <a href="https://www.utu.fi/en" target="_blank" rel="noreferrer noopener">University of Turku</a> and the <a href="https://www.helsinki.fi/en" target="_blank" rel="noreferrer noopener">University of Helsinki</a> set out to test, not just assume, the depth of human-horse bonds. They adapted a well-known <a href="https://www.earth.com/news/pets-increase-life-satisfaction-as-much-as-marriage-or-close-friendships/">pet</a> attachment tool to fit equine life and validated it with a large, international sample.



The goal was simple: turn heartfelt stories into data that can be compared, tracked and used.



<h2 class="wp-block-heading" id="h-a-questionnaire-built-for-the-barn">A questionnaire built for the barn</h2>



The team developed the Horse Attachment Questionnaire (HAQ). It draws on attachment theory, which describes how we form and keep emotional bonds. In this framework, relationships are often described along two dimensions.&nbsp;



Attachment-related <a href="https://www.earth.com/news/stress-rewires-your-brain-circuits-to-fuel-anxiety-and-depression/">anxiety</a> captures worries about being unloved or abandoned. Attachment-related avoidance reflects discomfort with closeness and a tendency to keep distance. 



The Horse Attachment Questionnaire reframed existing pet items so they spoke directly to <a href="https://www.earth.com/news/all-domestic-horses-have-ancestors-in-russia/">horses</a>, riding, care, and time spent together.



<h2 class="wp-block-heading" id="h-psychology-behind-humans-and-horses">Psychology behind humans and horses</h2>



The researchers gathered answers from 2,287 horse owners across 21 countries. The largest groups came from France and Finland. Participants completed a version of the Pet Attachment Questionnaire rewritten to reference horses rather than pets in general.&nbsp;



This breadth matters. Culture, riding styles, and management routines vary widely. A tool that works across contexts is much more useful than one that fits only a single country or discipline.



The statistical tests were clear. Most statements worked well to describe the human-horse relationship, and the same two-dimensional pattern appeared. Anxiety and avoidance explained how owners differed, just as in studies of human relationships and human-pet bonds.&nbsp;



In other words, the psychology that helps us understand parents and children - or people and dogs - also helps us understand people and horses.



<h2 class="wp-block-heading" id="h-who-tends-to-feel-what">Who tends to feel what</h2>



The data also point to the kinds of owners who report anxious or avoidant bonds. Younger owners, and people higher in neuroticism, were more likely to score high on anxious attachment. 



These individuals worry about losing closeness with their horse or seek extra reassurance that their horse likes or needs them.&nbsp;



Male owners, by contrast, scored higher on avoidant attachment. They were more likely to keep emotional distance from their horses. These are averages, not judgments. They help explain patterns that trainers, vets, and therapists often sense but cannot quantify.



<h2 class="wp-block-heading" id="h-culture-and-time-in-the-saddle">Culture and time in the saddle</h2>



Differences between countries emerged too. The model fit slightly better for French owners than for Finnish owners. One possible reason is riding practice.&nbsp;



In this sample, French owners were more often the sole riders of their horses. They may spend more exclusive time with their animals. Finnish owners were more likely to share their horses with others. Those realities might shape how attachment is expressed and recognized.



“Our findings demonstrate that horses can act as meaningful attachment figures for people, much like pets and other humans," said study lead author Aada Ståhl, a PhD student at the University of Helsinki.



"By validating this questionnaire, we now have a reliable way to measure those bonds and explore how they are shaped by factors such as personality and culture." 



<h2 class="wp-block-heading" id="h-why-this-matters-beyond-feelings">Why this matters beyond feelings</h2>



A validated tool does more than label emotions. It opens doors. “It provides a robust foundation for studying how attachment influences not only the well-being of horse owners but also the care and training of horses,” said study co-author Océane Liehrmann, a postdoctoral fellow at the University of Turku.&nbsp;



“Previous work has shown that insecure attachment styles in pet owners can impact the way animals are treated and even their behaviour. Applying these insights to horses could improve understanding of how human psychology shapes <a href="https://www.earth.com/news/recognizing-emotions-in-horses-can-improve-their-health/">equine welfare</a>.”&nbsp;



If attachment shapes handling choices, stable routines or training pressure, then measuring it could help prevent problems before they start.



<h2 class="wp-block-heading" id="h-from-therapy-to-training-arenas">From therapy to training arenas</h2>



The Horse Attachment Questionnaire could prove useful in <a href="https://www.earth.com/news/therapy-horses-are-helping-children-heal-from-trauma/">equine-assisted therapy</a>, where horses partner with clinicians to support human health. 



Knowing an owner’s or client’s attachment style could help tailor sessions and set boundaries that keep both humans and horses safe. Trainers may also benefit.



Understanding whether a rider tends to worry about closeness or to pull back from it can guide communication, goal setting, and feedback. 



The same insight could inform how barns match riders with mounts, or how professionals coach parents of young riders.



<h2 class="wp-block-heading" id="h-human-bonds-with-horses">Human bonds with horses</h2>



Horses occupy a special place in human life. They are neither purely working animals nor purely companions. This study treats that uniqueness as a feature, not a flaw.&nbsp;



By adapting established psychology to the realities of equine care, the authors show that our bonds with horses can be mapped with the same clarity we bring to other relationships. 



The message is practical and humane. If we understand the patterns that shape our feelings, we can make better choices for the animals who depend on us - and for ourselves.



The study is published in the journal <a href="https://www.tandfonline.com/doi/full/10.1080/08927936.2025.2544420" target="_blank" rel="noreferrer noopener">Anthrozoös</a>.



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Horses aren't just companions - they're part of the family

Many people love their horses like family. New research shows that horses can serve as meaningful attachment figures for humans in ways that look a lot like our bonds with pets and even close partners. The study also introduces a survey that can reliably measure how attached someone is to their horse. Researchers from the University of Turku and the University of Helsinki set out to test, not just assume, the depth of human-horse bonds. They adapted a well-known pet attachment tool to fit equine life and...

Adding trees can help keep cities cool during heatwaves. After <a href="https://www.earth.com/news/european-heat-wave-greenland/">record-breaking heatwaves</a> and wetter, warmer summers expected in the coming years, the UK’s <a href="https://www.forestryengland.uk/">Forestry Commission</a> says that planting trees could be the key to keeping cities cool. 

The <a href="https://www.telegraph.co.uk/news/2019/09/16/britain-will-see-four-heatwaves-year-twice-many-flash-floods/">Met Office</a> recently reported that Britain could experience four heatwaves a year and twice as many flash floods in 50 years.

The Forestry Commission, in collaboration with the <a href="https://www.gov.uk/government/organisations/department-for-environment-food-rural-affairs">Department for Environment, Food, and Rural Affairs</a> and the <a href="http://www.reading.ac.uk/">University of Reading</a>, conducted a study investigating whether or not trees could mitigate the urban heat island effect. 

Urban forests could serve as an effective, eco-friendly solution to air conditioning. 

According to the study, areas with high forest cover were as much as four degrees Celsius cooler than areas with sparse foliage.

The study suggests that planting trees in areas where people and homes would benefit most from the shade could decrease air conditioning by 13 percent and save the UK £22million in energy costs a year. 

Trees like the London Plane Tree, the Cherry Tree, and the Sessile Oak could go a long way in reducing emissions and shrinking carbon footprints. 

To reap the maximum cooling benefits, city managers should plant drought-resistant trees with dense foliage and high transpiration rates. 

Transpiration is the process by which moisture travels through a plant before it is released as vapor into the atmosphere. 

“In collaboration with Ricardo Energy &amp; Environment and Uppsala University, Sweden, we have identified which tree characteristics are linked to the greatest cooling and have proposed a methodology that can be used by urban planners and tree managers to compare and select tree species according to their cooling ability,” the Forestry Commission said. 

--

By<a href="mailto:kayvandette@gmail.com"> Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer

Adding trees can help keep cities cool during heatwaves

Adding trees can help keep cities cool during heatwaves. After...

Urban agriculture could help food desert cities meet sustainability goals. Millions of people in the US lack <a href="http://thefoodtrust.org/uploads/media_items/access-to-healthy-food.original.pdf">access to healthy food</a> and live in what are known as “food deserts.” However, a new study has found that community gardens could offer a simple solution to making local food systems more sustainable, healthy, and accessible.  

Researchers from <a href="https://www.asu.edu/">Arizona State University</a> investigated <a href="https://www.earth.com/news/benefits-urban-agriculture/">urban agriculture</a> to see if local gardens in Phoenix, Arizona, could help the city meet its sustainability goals. 

For the study, the researchers analyzed data from public records and satellite imagery to assess how crops grown on vacant lots, rooftops, and building facades might improve sustainability. 

5.4 percent of the city, roughly 28 square miles, could be designated for urban agriculture. 71 percent of the area available for urban agriculture in Phoenix wouldn’t come from vacant lots but buildings. 

If utilized effectively, urban agriculture could provide 183,000 tons of fresh produce annually, according to the study results.

“Our analysis found that if Phoenix used only about 5% of its urban spaces (2% of its land, and about 10% of its building surfaces) for urban agriculture, the city could meet its sustainability goal concerning local food systems,” said Matei Georgescu, a co-author of the study. “Urban agriculture would also contribute towards the city’s goals of increasing open spaces, and reducing environmental impact from buildings and land use.” Urban agriculture could help food desert cities meet sustainability goals

Green space could be increased by 17 percent and provide more open green areas to Phoenix residents. 

Rooftop agriculture could generate energy savings for buildings and help offset 50,000 tons of carbon emissions each year. 

“Our work demonstrates the multitude of ways that urban agriculture can serve cities, beyond merely the somewhat limited focus on food production,” said Georgescu. 

An exciting aspect of the study is that the results could be adopted to help develop sustainable food systems in other cities across the country. 

The researchers published their findings in the journal <a href="https://iopscience.iop.org/article/10.1088/1748-9326/ab428f">Environmental Research Letters</a>.

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com</a> Staff Writer 

Image Credit: Shutterstock/AYA images

Urban agriculture could help food desert cities meet sustainability goals

Urban agriculture could help food desert cities meet sustainability goals....

This year, more than 70,000 fires have burned across the <a href="http://www.earth.com/news/bolsonaro-politics-amazon-fires/">Amazon rainforest</a>, which is an increase of 80 percent compared to the number of fires in the region last year. Brazilian president Jair Bolsonaro has come under intense scrutiny for limiting the resources and authority of the government agencies that were designated to monitor illegal deforestation activities. 

When an aid package of $22 million was offered from some of the world’s wealthiest countries to help combat the fires, Bolsonaro angrily rejected the offer - before later accepting $12 million in aid from Britain. 

Beyond the fire disaster, Bolsonaro's administration has been vocal about plans to open up protected indigenous reserves of the Brazilian Amazon for farming, mining, and logging. Based on these interests, Bolsonaro encouraged loggers to clear more of the Amazon, which many believe is what sparked this year's firestorm.

However, in a new investigation from <a href="https://trase.earth/">TRASE</a>, the biggest beef-consuming countries are playing their own role in deforestation across the Amazon.

"Brazil is the world’s biggest exporter of beef products, exporting around 1.4 million tons per year to retailers and manufacturers around the world. While this trade worth almost US$6 billion is important for the Brazilian economy, it has come at a price for the country’s forests, local and traditional peoples and biodiversity," explains TRASE, a partnership between the Stockholm Environment Institute and Global Canopy.

The organization tracked Brazilian beef exports from where the cattle were raised to 150 importing countries to identify the major companies involved in this trade. The researchers found that cattle ranching led to an average of 65,000 - 75,000 hectares of deforestation practices each year between 2015 and 2017. 

The single largest exporter of Brazilian beef, JBS, was linked to more than a third of the deforestation risk, despite the company's pledge to allow zero deforestation in the Amazon. 

According to <a href="https://www.newscientist.com/">New Scientist</a>, a spokesperson for JBS said the TRASE analysis is misleading and that the firm has an "unwavering commitment to combat, discourage and eliminate deforestation in the Amazon."

In 2017, exports to Hong Kong were linked to 27 percent of the beef-related deforestation risk, exports to China were linked to 7 percent of this risk, and exports to Russia were associated with the third highest risk.

"By identifying the origins of exported beef and other cattle products, the Trase data also allow us to compare the deforestation linked to exports and to the domestic 

market," states TRASE. "Overall, export markets purchase 19% of Brazil’s beef, shouldering 13-14% of deforestation risk. The domestic market buys 81% of Brazil’s beef and is linked to 85-86% of cattle-related deforestation."

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Paid for by <a href="http://earth.com">Earth.com</a>

Image Credit: Shutterstock/Rich Carey

Deforestation in the Amazon is largely driven by beef consumption

This year, more than 70,000 fires have burned across the...

Is sex addiction rooted in the unregulated production of oxytocin?. Hypersexual disorder, sometimes referred to as sex addiction, affects around 3 to 6 percent of the global population. 

The <a href="https://icd.who.int/browse11/l-m/en#/http://id.who.int/icd/entity/1630268048">World Health Organization</a> lists hypersexual disorder as an impulse disorder characterized by obsessive thoughts revolving around sex, feeling out of control, and engaging in risky sexual behavior disregarding personal health and safety. 

There is some controversy as to whether hypersexual disorder can be classified as such, or if it’s simply an extension or manifestation of another mental health issue. Without a clear understanding of hypersexual disorder, it can result in stigma, misleading information, and prevent people from seeking treatment or help. 

Very little research has been done on the neurobiology behind hypersexual disorder.

Researchers from <a href="https://www.uu.se/en">Uppsala University </a>and <a href="https://ki.se/en">Karolinska Institutet</a> in Sweden may have identified <a href="https://www.earth.com/news/risky-behavior-dna/">biological mechanisms</a> that drive hypersexual disorder. 

The researchers focused on epigenetic or heritable changes that influence gene expression without altering DNA sequences. 

“We set out to investigate the epigenetic regulatory mechanisms behind hypersexual disorder so we could determine whether it has any hallmarks that make it distinct from other health issues,” said Adrian Boström, the lead author of the study. 

The researchers analyzed blood samples from 60 patients with hypersexual disorder and 30 patients who weren’t diagnosed with the disorder. 

In the blood samples, the researchers measured DNA methylation patterns or modifications that affect gene expression. 

Two regions of DNA were altered in the blood of the patients with hypersexual disorder, and the changes may result in unregulated and elevated production of oxytocin (the love hormone), but the researchers say that more work is needed to confirm this connection.

“Further research will be needed to investigate the role of microRNA-4456 and oxytocin in hypersexual disorder, but our results suggest it could be worthwhile to examine the benefits of drug and psychotherapy to reduce the activity of oxytocin,” said Professor Jussi Jokinen, an author of the study. 

The researchers published their findings in the journal <a href="https://www.tandfonline.com/doi/full/10.1080/15592294.2019.1656157">Epigenetics</a>. 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Image Credit: Shutterstock/Vasilyev Alexandr

Is sex addiction rooted in the unregulated production of oxytocin?

Is sex addiction rooted in the unregulated production of oxytocin?....

Artificial intelligence can diagnose diseases with impressive accuracy. A team of researchers has investigated the potential for <a href="http://www.earth.com/news/artificial-intelligence-earth-data/">artificial intelligence</a> (AI) to detect diseases in medical images as well as humans can. After conducting the first systematic review of published studies related to this topic, the experts found that humans and machines have similar levels of accuracy.

The researchers explained that medical imaging is one of the most valuable sources of diagnostic information, but the need for diagnostic images is outpacing the capacity of available specialists, particularly in low-income and middle-income countries.Artificial intelligence can diagnose diseases with impressive accuracy

"Deep learning offers considerable promise for medical diagnostics," wrote the study authors. "We aimed to evaluate the diagnostic accuracy of deep learning algorithms versus health-care professionals in classifying diseases using medical imaging."

Out of more than 20,000 studies of applications using AI for medical imaging, the team found that only 14 produced good quality data. Collectively, these 14 studies suggest that deep learning systems correctly detect a disease 87 percent of the time, while healthcare professionals are accurate 86 percent of the time.

Study co-author Professor Alastair Denniston is an eye specialist at the <a href="https://www.uhb.nhs.uk/home.htm">University Hospitals Birmingham</a>. He explained that while the results are encouraging, the study is a reality check for some of the hype about AI.

“There are a lot of headlines about AI outperforming humans, but our message is that it can at best be equivalent,” said study lead author Dr Xiaoxuan Liu.

The experts noted that there were few high-quality studies that involved a direct comparison or evaluated the performance of AI in a real clinic setting, which could significantly change the results of the meta-analysis. Because of these limitations, the researchers said the true diagnostic power of AI “remains uncertain.”

Professor Paul Leeson is a professor of Cardiovascular Medicine at the University of Oxford, who was not involved with the study. 

"This paper summarizes the current state of research testing how well artificial intelligence identifies disease in a medical image compared to a clinician. The review has been performed very carefully but real challenges were encountered trying to get a useful result," said Professor Leeson. 

"The authors had to lump together findings from completely different medical problems and types of imaging, including research performed at a very early stage in the development." 

"Importantly the work highlights a new phase of research is needed, using more detailed trials, to work out the best ways to use artificial intelligence in healthcare."

The study is published in the <a href="https://www.thelancet.com/digital-health">Lancet Digital Health</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Image Credit: Shutterstock/sdecoret

Artificial intelligence can diagnose diseases with impressive accuracy

Artificial intelligence can diagnose diseases with impressive accuracy. A team...

In the washer, millions of plastic microfibers are shed from clothing that contain materials such as nylon, polyester, and acrylic. These fibers are so small that they drain out of the washing machine and often make their way into the marine environment, where they are ingested by animals.

Two years ago, <a href="https://www.ncl.ac.uk/">Newcastle University</a> scientists demonstrated for the first time that microfibers are now present in the deepest parts of the ocean. In a new study, the team discovered that the amount of water used during the wash cycle is the main factor that influences the release of microfibers from clothing. 

The scientists found that more fibers were released in higher volumes of water, regardless of the speed or spinning force of the washing machine. In addition, the experts determined that 800,000 more fibers were released during a delicate wash compared to a standard cycle.

"Counterintuitively, we discovered that 'delicate' cycles release more plastic microfibers into the water, and then the environment, than standard cycles," explained study lead author and PhD student Max Kelly.

"Previous research has suggested the speed the drum spins at, the number of times it changes spinning direction during a cycle and the length of pauses in the cycle - all known as the machine agitation - is the most important factor in the amount of microfiber released."

"But we have shown here that even at reduced levels of agitation, microfiber release is still greatest with higher water-volume-to-fabric ratios. This is because the high volume of water used in a delicate cycle which is supposed to protect sensitive clothing from damage actually 'plucks' away more fibers from the material."

Laundry has been previously acknowledged as being a major contributor of plastic particles, but obtaining a precise measurement has been challenging. 

The Newcastle team used a tergotometer, a benchtop device made up of eight washing vessels that simulate full-scale domestic washing, which allowed the experts to test under different conditions. A digital color imaging system was then used to calculate the amount of microfibers released.

The results of the study show that previous recommendations to move toward high water volumes and low levels of agitation were only making the microfiber issue worse.

"The appliance industry has started to introduce microfiber filters in some new washing machines and the textile industry is looking to reduce the fiber shedding levels of new clothing," said study co-author Neil Lant, who is a research fellow at Procter &amp; Gamble in Newcastle. "We hope that the issue will ultimately be solved by such actions, and our work on the mechanistic causes will help in the development of these solutions."

Kelly emphasized that reducing the amount of <a href="http://www.earth.com/news/worlds-tap-water-contains-plastics/">plastic pollution</a> is everyone's responsibility and that it is often the small changes that make a huge difference.

"By avoiding high water-volume-to-fabric washes such as the delicate cycles and ensuring full wash loads then we can all do our bit to help reduce the amount of these synthetic fibers being released into the environment," said Kelly.

"Hopefully, these findings may also be used by manufacturers to influence the design of future washing machines and reduce our plastic footprint. Over time these changes could also see a global reduction in the amount of energy and water required to wash our clothes."

The study is published in the journal <a href="https://pubs.acs.org/journal/esthag">Environmental Science and Technology</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Image Credit: Shutterstock/Werayuth Tes

Clothes in delicate wash cycle release hundreds of thousands more microfibers

In the washer, millions of plastic microfibers are shed from...

A new study led by the <a href="https://www.hsph.harvard.edu/">Harvard T.H. Chan School of Public Health</a> has linked greater consumption of sugar-sweetened beverages (SSBs) to a higher risk of premature death from conditions such as <a href="http://www.earth.com/news/egg-consumption-cardiovascular-disease/">cardiovascular disease</a> and cancer. 

The researchers also found that this risk was lowered by replacing one sugary beverage per day with an artificially sweetened beverage (ASB). On the other hand, the daily consumption of four or more ASBs was linked to a higher rate of mortality for women. 

Study lead author Vasanti Malik is a research scientist in the Department of Nutrition. “Our results provide further support to limit intake of SSBs and to replace them with other beverages, preferably water, to improve overall health and longevity,” said Malik.

In the United States, SSBs such as soft drinks, energy drinks, and sports drinks are the single largest source of added sugar. Although the rate of SSB consumption has been steadily declining for the last decade, this rate has recently increased among American adults. 

Sugary beverages were previously linked to weight gain, type 2 diabetes, heart disease, and stroke, yet few studies have investigated the potential mortality risk associated with SSBs.

The current analysis was focused on data from more than 80,000 women participating in the Nurses' Health Study and nearly 38,000 men in the Health Professionals Follow-up Study. The participants in these studies answered questions about their lifestyle and health status every two years.

The researchers found that the more SSBs an individual consumed, the more his or her risk of early death from any cause increased. For example, drinking two or more sugary beverages per day was associated with a 21-percent greater chance of premature death. 

In particular, SSB consumption raised the risk of a premature death from cardiovascular disease. Individuals who drank two or more servings per day had a 31-percent higher risk, and each additional serving boosted this risk by ten percent. Furthermore, the effect was found to be much stronger among women compared to men. 

“These findings are consistent with the known adverse effects of high sugar intake on metabolic risk factors and the strong evidence that drinking sugar-sweetened beverages increases the risk of type 2 diabetes, itself a major risk factor for premature death,” said Professor Walter Willett. 

“The results also provide further support for policies to limit marketing of sugary beverages to children and adolescents and for implementing soda taxes because the current price of sugary beverages does not include the high costs of treating the consequences.”


The study is published in the journal <a href="https://www.ahajournals.org/journal/circ">Circulation</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Sugary beverages substantially increase the risk of premature death

A new study led by the Harvard T.H. Chan School...

Research reveals vast differences in what Americans know about science. A new study from the <a href="https://www.pewresearch.org/">Pew Research Center</a> has found that, when it comes to what Americans know and understand about science, there are vast differences. A survey of 4,464 adults revealed that just about 39 percent of American adults have a high level of science knowledge, while 29 percent have little knowledge of scientific facts. 

“In an era of easy access to a wide array of information, along with sometimes-intense debate over what information is true and false, this survey takes stock of the degree to which the public shares a common understanding of science facts and processes,” said Cary Funk, who is the director of science and society research at the Pew Research Center.


Of the 11 multiple-choice questions included in the survey, participants with a postgraduate degree answered an average of four more questions correctly compared to participants with a high school degree or less. Overall, 71 percent of those with a higher education were classified as having the most science knowledge, while only 19 percent of those with a high school degree were able to perform as well. 

There were also some gender differences found in the scores, but these discrepancies were not consistent across questions. For example, men and women were about equally likely to identify that <a href="http://www.earth.com/news/antibiotic-resistance-wastewater/">antibiotic resistance</a> is a major concern related to overuse of these drugs. However, about 20 percent more men were aware that inserting a gene into a plant is an example of genetic engineering.

Republicans and Democrats were found to have similar levels of science knowledge. Study participants who leaned toward the Republican Party averaged seven correct answers, while those who leaned toward the Democratic Party got an average of 6.6 survey questions correct.

The findings are based on a nationally representative survey conducted in January of 2019, involving adults 18 years of age or older across the United States. 
--
By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Paid for by <a href="http://earth.com">Earth.com</a>

Research reveals vast differences in what Americans know about science

Research reveals vast differences in what Americans know about science....

Many people struggle to manage their weight as they get older, and new research from the <a href="https://ki.se/en">Karolinska Institutet</a> in Sweden has discovered that this battle involves age-related changes in the breakdown or storage of fats for energy. 

The study revealed that lipid turnover in the fat tissue decreases during the process of aging, making it easier to <a href="http://www.earth.com/news/excess-weight-gain-brain-aging/">gain weight</a>. 

The investigation was focused on fat cells in 54 men and women over the course of 13 years, on average. Regardless of weight loss or weight gain, all of the individuals showed decreases in lipid turnover, which is the rate at which fat in the cells is removed and stored. The subjects who did not compensate for slower lipid turnover through diet and exercise gained weight by an average of 20 percent.

The researchers also analyzed lipid turnover in 41 women who underwent bariatric surgery, such as gastric bypass, tracking their ability to keep weight off four to seven years after the procedure. The team found that women who had a low rate of lipid turnover before the surgery were able to increase this rate of fat removal and maintain their weight loss. The experts theorize that these women may have had more room to increase their lipid turnover compared to those with a higher rate prior to surgery. 

"The results indicate for the first time that processes in our fat tissue regulate changes in body weight during aging in a way that is independent of other factors," said study co-author Professor Peter Arner. "This could open up new ways to treat obesity."

The analysis supports the findings of previous research that more exercise can speed up lipid turnover in the fat tissue.

"Obesity and obesity-related diseases have become a global problem," said study co-author Kirsty Spalding. "Understanding lipid dynamics and what regulates the size of the fat mass in humans has never been more relevant."

The study is published in the journal <a href="https://www.nature.com/nm/">Nature Medicine</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Image Credit: Shutterstock/tmcphotos

Why it’s easier to gain weight as you get older

Many people struggle to manage their weight as they get...

Stricter arsenic regulations helped make public drinking water safer. After the <a href="https://www.epa.gov/">Environmental Protection Agency</a> (EPA) lowered allowable arsenic levels in drinking water, the number of arsenic violations decreased by 80 percent in the US, according to a new study. 

Researchers from <a href="https://oregonstate.edu/">Oregon State University</a> in collaboration with the EPA tracked <a href="https://www.earth.com/news/water-contaminated-arsenic-heart/">arsenic drinking water contamination</a> and violations after the EPA released its Final Arsenic Rule (FAR) in 2001. 

Under FAR, drinking water systems were required to ensure that arsenic levels did not exceed 10 micrograms of arsenic per liter of drinking water, a major change from the 50 micrograms of arsenic per liter allowed before the ruling.

For this study, the researchers analyzed 12 years of data from the <a href="https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information-system-sdwis-federal-reporting">Safe Drinking Water Information System</a> and tracked arsenic violations starting in 2006 when FAR went into effect.

The number of public water system violations fell from 1.3 percent in 2008 to .55 percent in 2017, and the number of people exposed to harmful levels of arsenic in drinking water dropped by more than one million people nationwide. 

“This reinforces the point that safety regulations do work, especially when they come with a carrot-and-stick approach, like increasing resources for systems to comply and giving them flexibility to choose what works best for their community,” said Molly Kile, a corresponding author of the study. 

Arsenic is naturally occurring in the Earth’s crust, but it is also found in our food, the air we breathe, and drinking water, particularly drinking water that comes from groundwater sources.

It’s categorized as a Group 1 human carcinogen, and long term ingestion of arsenic can increase the risk of cancer. Arsenic ingestion presents a significant public health risk. 

After FAR was put into effect in 2006, violations quickly spiked, and many public water systems had higher than allowable arsenic levels in their water. 

However, it didn’t take too long for municipal water systems to become compliant, and both large and small water systems worked hard to lower arsenic levels in the drinking water. 

“Improvements were seen in both ground water and surface water systems,” said Stephanie Foster, an author of the study.

Violations during the study period were more common in the western and southwestern United States, but the researchers say that due to the small number of counties where violations occurred in these areas, there may be local circumstances at work. 

“When people drink city water, they do so under the assumption that it is safe,” said Kile. “Delivering on this promise requires constant vigilance. It also requires revising regulations and making sure they reflect the best available science. This means regulations change over time to protect our health, and this study demonstrates that with proper support, organizations can comply and will comply with tougher regulations to protect the public’s health.”

The researchers published their findings in the journal <a href="https://pubs.acs.org/doi/10.1021/acs.est.9b02358">Environmental Science and Technology</a>.

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette,</a> <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Paid for by <a href="http://earth.com">Earth.com</a>

Image Credit: Shutterstock/Romiana Lee

Stricter arsenic regulations helped make public drinking water safer

Stricter arsenic regulations helped make public drinking water safer. After...

Have you ever wondered what is going on in your brain when you listen to your favorite song? 

A new study has found that the different cognitive processes involved in listening to a song and remembering a familiar tune overlap in the brain but travel in opposite directions. 

Music has a profound impact on our moods and cognition, with new research showing that listening to music may be as<a href="https://www.earth.com/news/music-medications-calm-nerves/"> effective as medication </a>meant to ease anxiety administered before surgery and that music students score higher in <a href="https://www.earth.com/news/music-students-score-better/">math and science tests</a>. 

Past research has identified the areas on the right side of the brain activated by music, but the specific processes of listening to and remembering music remained somewhat of a mystery.

In other words, it was not well understood how the brain regions activated by music responded during music listening and music recall.

Researchers from <a href="https://www.tsinghua.edu.cn/publish/thu2018en/index.html">Tsinghua University </a>in Beijing, General Hospital of People’s Liberty Army in Beijing, and <a href="https://www.jhu.edu/">Johns Hopkins University</a> in Maryland examined neural activity in the regions of the brain activated by music to better understand these processes. 

Ten epilepsy patients, both men and women, were recruited for the study. 

The researchers used electrocorticography to record neural activity in the brain as the participants listened to popular songs like Beethoven’s “Für Elise” or Wagner’s “Wedding March.” 

As the participants listened to the songs, the researchers found that the songs correlated with cortical activity in the temporal lobe followed by the precentral gyrus. With music recall, however, electrical activity started in the inferior frontal gyrus and spread to the temporal lobe. 

Music listening in the frontal lobe lagged behind the neural pathways in the temporal lobe, but in music recall, researchers found activity in the frontal lobe preceded activity in the temporal lobe. 

Once we hear a familiar tune, the regions of the brain that remember the song overlap but music information between listening and recall flow in the opposite directions.

The researchers published their findings in the <a href="https://dx.doi.org/10.1523/JNEUROSCI.1468-18.2019">Journal of Neuroscience</a>. 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Image Credit: Shutterstock/Africa Studio

How music flows through the brain

Have you ever wondered what is going on in your...

The mental and physical impacts of drinking alcohol are well understood. Drinking too much can impair judgment, slow reaction time, cause liver damage and even increase the <a href="https://www.earth.com/news/drinking-years-life/">risk of early death</a>. 

However, less understood are the effects of hangovers caused by a night of overindulging. 

A new study conducted by researchers from the <a href="https://www.swinburne.edu.au/">Swinburne University of Technology</a> found that hangovers impair cognition and make it more challenging to do routine tasks like driving or performing well on a test.

The researchers focused specifically on alcohol hangovers rather than acute intoxication to get a better understanding of how a hangover impacts cognition. 

A hangover is the result of blood alcohol levels returning to zero. People suffering from hangovers commonly report having headaches, being sensitive to light and sound, feeling sick, and having problems focusing. 

To study hangovers, over 100 participants from Brisbane, Australia completed an online survey and cognition test after a night of drinking. 

The researchers recorded breath alcohol concentrations with a breathalyzer at the end of the night, and the participants were able to complete the test in their own homes. 

Rather than relying on self-reported data on how much participants drank, the breathalyzer data showed exact breath alcohol concentrations (BAC). 

Using an internet approach was also a strategic move because it eliminated the risk of having participants miss an in-person interview due to being too hungover.

The higher a participant’s BAC was, the worse their performance on the survey and cognition test, proving a direct link between alcohol hangovers and impaired brain activity.  

“Not surprisingly, the more alcohol that is consumed, the worse the hangover and impairment to the brain,” said Dr. Sarah Benson, an author of the study. 

The researchers also found that hangovers correlated with impaired memory and inability to conduct day-to-day tasks like driving. 

The study, published in the<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6518120/"> Journal of Clinical Medicine</a>, shows the importance of studying both acute intoxicating and lingering after-effects of overconsumption.  

“It is important to learn more about the causes and consequences of hangover because not only are hangovers very commonly experienced, but they also have potentially huge negative effects on day-to-day activities,” said Dr. Benson. “For example, our study proves that hangovers reduce ability to engage in complex behaviours, and thus ability to drive, work, study or conduct other activities are impaired by hangover.”

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Image Credit: Shutterstock/fizkes

Hangovers impact cognitive performance, study shows

The mental and physical impacts of drinking alcohol are well...

<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=2E0mn5mTvhQ
</div><figcaption class="wp-element-caption">'Death Star' moon Mimas conceals a 15-million-year-old ocean that scientists never expected.</figcaption></figure>



<h2 class="wp-block-heading" id="h-hidden-waters-beneath-ancient-craters">Hidden waters beneath ancient craters</h2>



Scientists have made a startling discovery that challenges everything we thought we knew about <a href="https://www.earth.com/news/saturn-moon-mimas-has-remarkably-young-ocean/" target="_blank" rel="noreferrer noopener">Saturn's moon Mimas</a>. Beneath the heavily cratered surface that earned it the nickname "Death Star" lies a global ocean that formed just 5 to 15 million years ago—a remarkably young age by cosmic standards.



<h2 class="wp-block-heading" id="h-cassini-data-reveals-orbital-secrets">Cassini data reveals orbital secrets</h2>



The discovery, led by Dr. Valéry Lainey of the <a href="https://observatoiredeparis.psl.eu/" target="_blank" rel="noreferrer noopener">Observatoire de Paris</a>, emerged from careful analysis of <a href="https://www.nasa.gov" target="_blank" rel="noreferrer noopener">NASA</a>'s Cassini spacecraft data. By studying subtle irregularities in Mimas's orbit around Saturn, researchers detected the gravitational signature of liquid water hidden 20 to 30 kilometers beneath the moon's icy shell.



<h2 class="wp-block-heading" id="h-an-unlikely-ocean-world">An unlikely ocean world</h2>



At only 400 kilometers in diameter, Mimas seemed like the least likely candidate to harbor a subsurface ocean. Unlike other ocean moons such as Europa and Enceladus, which show clear surface signs of internal activity, Mimas displays no obvious hints of the liquid water beneath its ancient, crater-scarred exterior.



"Mimas is a small moon, and its heavily cratered surface gave no hint of the hidden ocean beneath," explained Dr. Nick Cooper from <a href="https://www.qmul.ac.uk/" target="_blank" rel="noreferrer noopener">Queen Mary University of London</a>, a study co-author.



<h2 class="wp-block-heading" id="h-implications-for-astrobiology">Implications for astrobiology</h2>



The ocean's recent formation makes Mimas a prime target for studying how oceans develop and potentially support life. This discovery adds another member to the exclusive club of ocean worlds in our solar system, each offering unique insights into the conditions necessary for habitability.



The research, published in <a href="https://www.nature.com/" target="_blank" rel="noreferrer noopener">Nature</a> journal, demonstrates how advanced orbital analysis can reveal hidden features of celestial bodies, opening new possibilities for understanding ocean formation throughout the cosmos.



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Scientists discover unexpected young ocean on Saturn's cratered moon Mimas

https://www.youtube.com/watch?v=2E0mn5mTvhQ 'Death Star' moon Mimas conceals a 15-million-year-old ocean that...

<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.

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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

[sendtonews key="0ynNMYkMKa-2340414-12187" 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> (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



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 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



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Two distant planets may be "water worlds"

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