Western wildfires send smoke across the country, so it sounds obvious that they always make air quality worse everywhere. New research shows that is not the whole story.



During severe fire seasons in the West, the intense heat from those <a href="https://www.earth.com/news/forest-thinning-cuts-wildfire-severity-and-saves-carbon/">fires</a> can change weather patterns and rainfall in ways that actually lower fine particle pollution in the eastern United States. That result surprised even seasoned atmospheric scientists.



<h2 class="wp-block-heading" id="h-wildfire-heat-and-air-quality">Wildfire heat and air quality </h2>



Qihan Ma of <a href="https://www.tsinghua.edu.cn/en/" target="_blank" rel="noreferrer noopener">Tsinghua University</a> and colleagues analyzed observations and climate simulations that account for the daily heat released by fires. The researchers found that strong fire heat can reduce fine particle levels in the East during the fire season.



Scientists track fine particle pollution called PM2.5, which refers to particles smaller than 2.5 micrometers across. PM2.5 gets deep into the lungs and bloodstream, and its <a href="https://www.epa.gov/pm-pollution/health-and-environmental-effects-particulate-matter-pm" target="_blank" rel="noreferrer noopener">effects</a> include higher risks of heart and lung disease and premature death.



The results did not just point to smoke. The team showed how fire-driven <a href="https://www.earth.com/news/human-wildfire-exposure-rises-worldwide-despite-less-land-burning/">heat</a> boosts convection, the upward movement of warm air. This suppresses eastward smoke transport and increases rain that washes particles out of the air, a process called wet deposition. 



<h2 class="wp-block-heading" id="h-air-quality-in-the-east-and-west">Air quality in the East and West</h2>



Observations from <a href="https://www.earth.com/news/wildfire-seasons-are-now-overlapping-worldwide/">air</a> monitors revealed a dipole pattern during extreme western fire events, with PM2.5 rising in the West and falling in the East by a comparable amount. 



Model simulations for the full fire season showed similar contrasts of about 1.71 micrograms per cubic meter in the West and minus 1.21 micrograms per cubic meter in the East.



Satellite analysts also mapped smoke plumes over long distances during these events. NOAA confirmed that smoke often spread across parts of the East, yet many eastern monitors still recorded lower PM2.5.



To represent fire inputs day by day, the researchers used the <a href="https://www.globalfiredata.org/data.html" target="_blank" rel="noreferrer noopener">GFED4.1s</a> dataset, which estimates burned area, emissions, and heat release. The data helped quantify how much energy the fires pumped into the atmosphere.



The air quality and weather responses were simulated with the Community Earth System Model (<a href="https://www.cesm.ucar.edu/models" target="_blank" rel="noreferrer noopener">CESM</a>). To separate the drivers, the team ran simulations with smoke alone, heat alone, and with both.



<h2 class="wp-block-heading" id="h-wildfires-shift-weather-across-the-country">Wildfires shift weather across the country</h2>



Heat from large western fires increased convective available potential energy (CAPE) over the West, which favors stronger thunderstorms. It also nudged broader circulation patterns that reshaped wind and moisture across the country.



As the central United States dried and warmed near the surface, low level pressure dropped and winds shifted toward anomalous easterlies over the eastern half of the country.



The East grew more humid and unstable, and convective rain increased, which removed more particles from the air. These heat-driven shifts can modulate long range smoke impacts.



“Heat produced by wildfires, a commonly neglected effect, can reduce fine particle concentrations in the eastern United States,” wrote Ma.



<h2 class="wp-block-heading" id="h-lessons-for-health-and-policy">Lessons for health and policy</h2>



The results do not suggest that wildfires are harmless. The West still sees higher PM2.5 during fire season, and people there bear the brunt of smoke exposure and related health burdens.



The research shows that ignoring fire heat in national assessments can skew results. The authors report that leaving heat out of models overestimates health and economic losses by about 1,200 premature deaths and 3.3 billion dollars nationwide for the fire season. 



Those numbers are driven by the East’s large population and the modeled reductions in PM2.5 when heat effects are included.



Public health guidance should still emphasize reducing exposure wherever smoke raises risk. Strategies include wearing masks during high pollution days and targeted help for sensitive groups like children, older adults, pregnant women, and those with heart or lung disease.



For modeling and policy, the message is straightforward. Future national air quality planning and wildfire risk assessments need to incorporate fire heat, not just smoke emissions, to capture regional differences accurately.



<h2 class="wp-block-heading" id="h-limitations-and-open-questions">Limitations and open questions</h2>



The researchers emphasize that no model is perfect. In global models with coarse grids, convection is parameterized, meaning certain local storm processes are simplified.



The team validated a subset of cases with a superparameterized model that more explicitly resolves clouds. The results showed the same overall pattern, though the heat effects were weaker in magnitude - providing a useful constraint for future research.



Better heat estimates at subdaily timescales will also help. Averaging heat over a day can smooth out fire bursts that may drive the strongest convective responses.



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



People in the West should continue to prepare for smoke season and protect their lungs, because local pollution still rises during major fires. 



Communities in the East should not assume they are safe, since many days still exceed health guidelines and smoke episodes remain disruptive.



The broader lesson is about getting the physics right. Accounting for heat shows how the same fires can worsen air in one region and temporarily ease it in another, and that nuance matters for equitable investments in health and resilience.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/science.ads1957" target="_blank" rel="noreferrer noopener">Science</a>.



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Wildfires in the West can actually improve air quality in the East

Western wildfires send smoke across the country, so it sounds obvious that they always make air quality worse everywhere. New research shows that is not the whole story. During severe fire seasons in the West, the intense heat from those fires can change weather patterns and rainfall in ways that actually lower fine particle pollution in the eastern United States. That result surprised even seasoned atmospheric scientists. Wildfire heat and air quality Qihan Ma of Tsinghua University and colleagues analyzed observations and climate simulations that account for...

Noise from natural gas pipeline compressors does not deter birds from establishing nests nearby, but ultimately interferes with their reproductive success, according to experts at <a href="https://www.psu.edu/">Penn State</a>.

The researchers conducted an elaborate study that involved 80 new nest boxes occupied by Eastern bluebirds and tree swallows that were equipped with video cameras and recordings of compressor noise. 

"Importantly, the birds did not preferentially select quiet boxes over noisy boxes, suggesting they do not recognize the reduction in habitat quality resulting from the noise," said study co-author Professor Margaret Brittingham. 

"But both bluebirds and tree swallows nesting in noisy boxes spent less time incubating their eggs, had fewer eggs hatch and produced fewer young than their neighbors nesting in quiet boxes."

Natural gas production is rapidly expanding across the United States. Compressor stations that pressurize gas and push it through pipelines to consumers are often located in isolated areas of the forest used by breeding birds.

"The loud, low-frequency noise emitted by natural gas compressor stations travels hundreds of yards into undisturbed areas," said study co-author Professor Julian Avery. "Because shale gas development often occurs in relatively undisturbed natural areas that provide important habitat for breeding birds, it is imperative that we develop plans to manage and mitigate noise."

For their investigation, the researchers took precautions to make sure they were solely evaluating the responses of the birds to compressor noise, and not to other factors.

The experiment was conducted in the Russell E. Larson Agricultural Research Center at Rock Springs in central Pennsylvania. 

The team positioned the nest boxes to attract bluebirds and tree swallows to a site with no previous breeding population. Half of the boxes were exposed to natural gas compressor noise before birds returned to the region, while the other 40 boxes served as controls.

"We took a risk initiating the study - we weren't sure these birds would find and occupy our boxes," said Professor Avery. "We hoped that, 'if we build it, they will come.' Bluebirds likely had other nearby spots to nest, and the tree swallows were just returning from Central America. There was no guarantee they'd encounter our boxes."

Study lead author Danielle Williams monitored video feeds from within the boxes to document changes in breeding behavior. 

She found that there was no difference in the number of eggs laid between noisy boxes and quiet boxes or in feeding behavior by the adults. However, in both species, Williams observed a reduction in incubation time, hatching success, and fledging success in the noisy boxes.

The findings demonstrate that natural gas compressor noise causes behavioral changes that lead to reduced reproductive success for eastern bluebirds and tree swallows. 

According to the researchers, the results indicate that natural gas infrastructure can create an "equal-preference ecological trap," where birds do not distinguish between lower and higher quality territories despite reproductive costs.

"That suggests that noise did not increase rates of either depredation or abandonment but instead negatively impacted fitness through reduced hatching and fledging success," said Professor Brittingham. "We never would have known that if we had not done this research."

The study is published in the journal <a href="https://academic.oup.com/condor">Ornithological Applications</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Noise from natural gas compressors disrupts songbird reproduction

Noise from natural gas pipeline compressors does not deter birds...

Nature plays a major role in sanitizing cities worldwide, according to a new study published by <a href="https://www.cell.com/">Cell Press</a>. A team of researchers in the UK and India investigated the role of ecosystems in sanitation, and found that <a href="https://www.earth.com/news/observing-birds-in-nature-can-help-protect-them-in-captivity/">nature</a> provides at least 18 percent of these services in 48 major cities.

The experts estimate that more than two million cubic meters of human waste is processed each year without engineered infrastructure across the study sites. For example, pit latrine waste is gradually filtered and cleaned as it moves through the soil before it reaches groundwater.

Study co-author Alison Parker is a senior lecturer in International Water and Sanitation at Cranfield University in the United Kingdom. 

"Nature can, and does, take the role of sanitation infrastructure," said Parker. "While we are not marginalizing the vital role of engineered infrastructure, we believe a better understanding of how engineered and natural infrastructure interact may allow adaptive design and management, reducing costs, and improving effectiveness and sustainability, and safeguard the continued existence of these areas of land."

Wastewater treatment infrastructure serves as an important promoter of human health by converting human feces into harmless products. By 2017, however, more than 25 percent of the world's population did not have access to basic sanitation facilities, while 14 percent used toilets that disposed of waste onsite. 

Previous research has suggested that this potentially hazardous waste may be naturally treated by natural wetlands and mangroves. For example, the Navikubo wetland in Uganda processes untreated wastewater from more than 100,000 households, which protects the Murchison Bay and Lake Victoria from harmful contaminants. 

In the United States, coastal wetlands in the Gulf of Mexico remove nitrogen from the Mississippi River, noted the researchers.

"We realized that nature must be providing sanitation services, because so many people in the world do not have access to engineered infrastructure like sewers," said study co-author Simon Willcock. "But the role for nature was largely unrecognized."

The team used Excreta Flow Diagrams to quantify sanitation ecosystem services in 48 cities containing about 82 million people. The study was focused on all diagrams that were available on December 17th, 2018, specifically those coded as "fecal sludge contained not emptied." 

The researchers estimate that nature processes 2.2 million cubic meters of human waste per year within these 48 cities. Since more than 892 million people worldwide use similar onsite disposal toilet facilities, they further estimate that nature sanitizes about 41.7 million tons of human waste per year before the liquid enters the groundwater. These services are collectively valued at about $4.4 billion per year, but the study authors note that these estimates likely undervalue the true worth of sanitation ecosystem services.

The experts hope their findings will shed light on an important but often unrecognized contribution that nature makes to many people's everyday lives, which may inspire the protection of ecosystems such as wetlands that protect communities from wastewater pollutants downstream.

"We would like to promote a better collaboration between ecologists, sanitation practitioners and city planners to help nature and infrastructure work better in harmony, and to protect nature where it is providing sanitation services," said Parker.

The study is published in the journal <a href="https://www.oneearth.org/">One Earth</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nature sanitizes more than 40 million tons of human waste a year

Nature plays a major role in sanitizing cities worldwide, according...

An international group of scientists is calling for global action to inform policymakers and the public about the widespread threat of chemical pollution. In a study from the <a href="https://greensciencepolicy.org/">Green Science Policy Institute</a>, the researchers explain how a lack of science-policy interactions on chemicals and waste has contributed to <a href="https://www.earth.com/news/gut-health-may-protect-you-from-severe-covid-19/">health</a> and environmental problems worldwide.

Even though chemical pollution is a global issue, international policymakers do not have a way to stay informed regarding important new scientific findings, which limits their ability to address the growing problem. 

"We need international cooperation to address issues that transcend borders, such as the harms of heavy metals, persistent organic pollutants, and plastic wastes," said study lead author Dr. Zhanyun Wang. "This is critical for developed and developing countries where developing countries are the world's dumping grounds for toxics."

According to the researchers, over 100,000 chemicals are currently in use, including pesticides used in farming, metals that are disposed of in old digital devices, and the PFAS that make rain jackets waterproof. The experts report that exposure to just a small fraction of harmful chemicals contributed to over 1.3 million premature deaths in 2017. 

As the amount and variety of chemicals in use continue to increase, the threats will continue to grow. In 2017, global chemical sales were over US$5.6 trillion, and are projected to almost double by 2030. 

The trends projected for waste generation are even more alarming. For example, the amount of plastic waste entering the ocean in 2025 is expected to be 10 times higher than in 2010.

The study authors emphasize that a global intergovernmental science-policy body for chemicals and waste is urgently needed to monitor the chemicals that are in use throughout their life cycles. The panel would also identify policy-relevant research that could speed up action to protect the health of humans and the environment.

"A new science-policy body will provide a scientific basis for international and national action on chemicals and waste by conducting authoritative scientific assessments, identifying emerging concerns, and connecting policy makers and scientists," said Dr. Wang. "A journey of a thousand miles begins with a single step, and we hope the governments around the world will take this critical step toward a pollution-free planet."

The study is published in the journal <a href="https://www.sciencemag.org/">Science</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Chemical pollution is a global threat that needs to be monitored

An international group of scientists is calling for global action...

As <a href="https://www.earth.com/news/north-americas-largest-mammals-were-a-casualty-of-climate-change/">climate</a> change transforms the planet, some areas will get hotter and drier, while others will get wetter. In a new study from <a href="https://www.ucdavis.edu/">UC Davis</a>, experts have discovered that yellow warblers can track down their preferred climate over thousands of miles. 

The research revealed that the songbirds have the same climate from one side of their migration range to the other.

"What's amazing is that the birds track similar climates despite the fact that they have migrated thousands of miles," said study co-author Rachael Bay, an assistant professor in the Department of Evolution and Ecology, College of Biological Sciences. "It seems that individual birds may be adapted to particular climate regimes."

Yellow warblers have breeding grounds throughout North America and fly south to spend their winters in Central and South America. 

In a previous study, Professor Bay and her team linked genetic variations among warblers with precipitation patterns across North America. This indicated that certain individuals are adapted to dry conditions, while others thrive in wet conditions. Based on their genetics, the researchers were able to predict where birds would breed.

Professor Bay collected data for the current study during her postdoctoral research, in collaboration with banding stations and collecting sites in North and South America. 

When the experts compared climate patterns in their winter and summer areas, they found that individual birds showed preferences for drier or wetter areas, but not for warmer or cooler areas. 

Yellow warblers that bred in relatively dry parts of North America, such as California's Central Valley, had overwintering grounds in dry parts of South or Central America.

"This is the first demonstration of using individual genetic tracking to link climates across the migratory cycle within a bird species," said Professor Bay.

The specialized ranges could have consequences for how the birds respond to climate change. Professor Bay speculates that the variation she and her colleagues found might provide the raw material for the species to adapt to changing climate conditions. 

For example, bird populations that are adapted to dry conditions could ultimately displace those adapted to wetter ones. This transition may have already begun, as the researchers found that population sizes of yellow warblers have changed with precipitation patterns over time. 

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/14610248">Ecology Letters</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Yellow warblers find their preferred climate over thousands of miles

As climate change transforms the planet, some areas will get...

In a new study from <a href="https://www.aaas.org/">AAAS</a>, experts report that when Earth's magnetic fields reversed nearly 42,000 years ago, major environmental changes were triggered. The geomagnetic reversal also led to extinction events and long-term changes in human behavior.

The research was made possible by a new radiocarbon record obtained from ancient kauri trees in New Zealand. The findings raise important questions about the evolutionary impacts of geomagnetic reversals and excursions throughout the deeper geological record, said the researchers. 

"Before this work, we knew there were a lot of things happening around the world at 42,000 years ago, but we didn't know precisely how," explained study co-author Chris Turney.  "For the first time, we've been able to precisely date what happened when Earth's magnetic fields last flipped." 

According to the geological record, the planet's magnetic poles have flipped multiple times. This event would be particularly disruptive today with modern electronic and satellite technologies. At the same time, the potential environmental consequences of these events are not yet known. 

The most recent major magnetic inversion was a relatively short-lived geomagnetic event known as the Laschamps excursion. This event gave experts the chance to study the potential impacts of extreme changes to Earth's magnetic field. 

Despite compelling evidence from several paleoenvironmental records that suggest the Laschamps excursion coincided with significant environmental changes, however, the ability to understand these changes was limited by an uncertain radiocarbon calibration for the period.

For the current investigation, the researchers took a new approach based on a radiocarbon record derived from the tree rings of ancient kauri trees that have been preserved for millennia in New Zealand wetlands. This new, precisely dated record allowed the team to compare Laschamps with other global radiocarbon and ice core records. 

The study revealed that the reversal of the poles was preceded by a significant increase in atmospheric radiocarbon during the period of weakening magnetic field strength. When they modeled the consequences of the increase in radiocarbon, the experts found that the geomagnetic field minimum triggered substantial changes in atmospheric ozone concentration. 

These shifts may explain simultaneous global environmental changes that have been recognized in other climate records dating back to 42,000 years ago.

According to the study authors, the discovery that geomagnetic field fluctuations can affect atmospheric temperature and circulation on a global scale provides a model for understanding anomalous and sudden paleoenvironmental shifts.

The study is published in the journal <a href="https://www.sciencemag.org/">Science</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Geomagnetic reversal triggered global environmental changes

In a new study from AAAS, experts report that when...

The 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico had a lasting impact on the immune function of bottlenose dolphins, according to a new study published by <a href="https://www.wiley.com/en-us">Wiley</a>.

For health assessments, bottlenose dolphins were captured, sampled, and released from an area that was heavily impacted by the oil spill. The experts compared the dolphins to those living in an unaffected area. 

The study revealed that immunological alterations in bottlenose dolphins tested up to a ten years following the oil spill were similar in nature to the effects documented immediately following the spill. The health impacts were seen detected in dolphins born after the spill. 

The findings suggest that there are long-term consequences of oil exposure on the immune systems of mammals, with possible multigenerational effects.

"The parallel between findings in dolphins exposed following the Deepwater Horizon spill and laboratory mice experimentally exposed to oil was impressive and really helped build the weight of evidence between oil exposure and specific effects on the immune system," said study co-author Dr. Sylvain De Guise.

"However, the long-term effects and potential for multigenerational effects raise significant concerns for the recovery of dolphin populations following the spill."

The Deepwater Horizon disaster released more than 205 million gallons of oil into the Gulf, and only about 25 percent of the oil was recovered. This left over 150 gallons of oil, along with nearly two million gallons of toxic dispersants, in the water. 

The oil dispersants, which were used in unprecedented quantities, did not reduce the oil in the ocean. Instead, the chemicals broke the oil down into smaller particles that may have actually been more toxic to marine life. 

According to previous estimates from the Center for Biological Diversity, the oil spill harmed or killed about 82,000 birds, 6,000 sea turtles, 25,900 marine mammals, and a vast number of fish. More than a thousand miles of coastal habitats were also affected, with cascading impacts on seagrass, shorebirds, and other species. 

The current study is published in the journal <a href="https://setac.onlinelibrary.wiley.com/journal/15528618">Environmental Toxicology and Chemistry</a>

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Bottlenose dolphins are suffering from oil spill ten years later

The 2010 Deepwater Horizon oil spill in the northern Gulf...

Rising <a href="https://www.earth.com/news/rising-temperatures-linked-to-low-quality-diets-among-children/">temperatures</a> could have a major impact on livestock production of meat and milk in East Africa, according to a new study from <a href="https://ciat.cgiar.org/">CIAT</a>. Hotter and more humid weather are expected to create unsuitable conditions for dairy cattle, beef cattle, sheep, goat, pigs, and poultry. 

Heat stress in these animals will occur more frequently and for longer periods, explained the researchers. In an analysis of data from 1981 to 2010, they found that livestock have already been progressively subjected to heat stress.

Projections show that environmental conditions are set to worsen significantly, which has serious implications for livestock. 

"We knew that climate change would bring problems for animals, yet we were surprised about the magnitude of change," said livestock expert An Notenbaert. "Climate change mitigation and adaptation measures absolutely need to be factored into decisions and strategies for livestock production."

The study authors noted that up to 19 percent of current meat and milk production takes place in areas where dangerous heat stress conditions are likely to increase in frequency from 2071 to 2100. 

Without urgent action to combat climate change, much of East Africa will become unsuitable for exotic pig, poultry, and dairy cattle production at the current rate of global warming.

Based on climate projections, the experts found that dairy production will be hit hardest in South Sudan, Southern parts of Eritrea, and eastern and northwestern parts of Kenya. Action is being taken to protect the pig sector in parts of Uganda, where heat stress is already prevalent.

"This paper is an alarm bell for policymakers and anyone involved in livestock in the tropical region," said study co-author Klaus Butterbach-Bahl of the International Livestock Research Institute (ILRI)

"In East Africa, where protein consumption is already low, this could worsen the food and nutrition security situation."

According to the researchers, well-targeted and evidence-based climate adaptation will enable livestock production to continue and expand across East Africa. Such measures include identifying productive animal breeds that are adapted to heat.

"Holstein Friesians, a popular imported breed, are not indigenous to Africa. Although they produce more milk than local breeds, they do not cope well with heat," said Notenbaert. "To make livestock production more environmentally efficient, we need breeds that can cope with rising temperatures while at the same time produce more meat and milk."

In addition to breeding, there are other mitigation strategies that could be considered to help animals cope with rising temperatures, such as providing them with shelter, shaded areas, or better access to water sources. 

"Heat stress in livestock, besides being an animal welfare issue, also means less income to the farmer, less efficient use of natural resources, and higher greenhouse gas emissions per unit of livestock product," said <a href="https://www.ilri.org/">ILRI</a> livestock breeder Karen Marshall.

"It is important to keep in mind, however, that while heat stress provides an important lens on the effect of climate change on animals, it is just one part of the picture."

The study is published in the journal <a href="https://www.nature.com/natfood/">Nature Food</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Livestock production could be hit hard by global warming

Rising temperatures could have a major impact on livestock production...

A new study from the <a href="https://www.uvm.edu/">University of Vermont</a> has pinpointed <a href="https://www.earth.com/news/more-than-one-third-of-the-corn-belt-impacted-by-farmland-erosion/">farmland</a> in the United States that could be targeted to reduce nitrogen pollution. The researchers have determined that more than 60 percent of the total surplus nitrogen balance is tied to only 24 percent of cropland area throughout the country.

"This study provides a new perspective on where to focus efforts to tackle America's nitrogen problems," said lead author Eric Roy. "The U.S. has so many nitrogen trouble zones, and making progress will be easier in some locations than others. That's why this research is important. It reveals where programs aiming to increase the efficiency of farm nitrogen use are most likely to be successful."

The investigation into nitrogen pollution in U.S. agriculture has identified 20 "hotspots of opportunity" in 759 counties across more than 30 states. According to the researchers, it is in these places where farmers, government, and citizens should target nitrogen reduction efforts.

Nitrogen is a critical component of crop growth and food production, but its excessive use is tied to major environmental issues. For example, high levels of nitrogen contributes to freshwater pollution, poor air quality, biodiversity loss, and coastal "dead zones."

The study revealed that the top-ranked area to target for nitrogen reduction is a 61-county area across Illinois, Indiana, Missouri, and Wisconsin. This region is followed by a 55-county stretch of Kansas and Nebraska.

Some places with the high nitrogen loads per acre surprised the researchers, particularly in the West where they identified a 32-county hotspot in Idaho, Montana, Wyoming, and Utah.

The study shows that nitrogen inputs are so high in many of these areas that farmers can most likely reduce nitrogen use without hurting crop yields, explained the experts. 

"This is a crucial finding because farmers naturally worry about lower crop yields when reducing nitrogen inputs," said study co-author Meredith Niles. "And we don't want to compromise food security goals."

The investigation is the first of its kind to provide a national analysis of underlying social, economic, and agronomic factors linked to nitrogen balances on croplands at the county-level. Some of these underlying factors include climate change beliefs, precipitation, soil productivity, crop mix, and farm operating expenses.

Based on these predictors, the researchers pinpointed cropland area where reductions in excess nitrogen are most achievable. In these regions, excessive nitrogen use was higher than expected when accounting for the underlying factors, which indicates there would be less barriers to achieving nitrogen reduction.

"This suggests that nitrogen reduction programs--including those that offer farmers' financial incentives--have the highest potential for success in these 20 regions," said study co-author Courtney Hammond Wagner.

The research is published in the journal <a href="https://iopscience.iop.org/journal/1748-9326">Environmental Research Letters</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Experts identify "hotspots of opportunity" to reduce nitrogen pollution

A new study from the University of Vermont has pinpointed...

Socialization makes a big difference in the life expectancy of adult female giraffes, according to a new study from the <a href="https://www.uzh.ch/en.html">University of Zurich</a>. The experts have found that female giraffes who spend more time with other females have a higher chance of survival than those who are less sociable.

For over five years, a research team led by Monica Bond has been conducting the largest study to date of a giraffe population. The site of the investigation, which is in the Tarangire region of Tanzania, spans more than 1,000 square kilometers and includes multiple social communities with hundreds of adult female members.

The researchers determined that the benefits of socializing outweigh the effects of environmental factors or human presence on the survival of female giraffes.

While group formations change throughout the day, adult females were found to maintain many special friendships over the long term.

"Grouping with more females, called gregariousness, is correlated with better survival of female giraffes, even as group membership is frequently changing," said Bond. "This aspect of giraffe sociability is even more important than attributes of their non-social environment such as vegetation and nearness to human settlements."

Beyond the threats of poaching and wildlife trafficking, adult female giraffe mortality is primarily caused by disease, stress, and malnutrition. 

"Social relationships can improve foraging efficiency, and help manage intraspecific competition, predation, disease risk and psychosocial stress," said study senior author Professor Barbara König. 

For example, female giraffes may team up with other females to obtain information about the best places to find food. Socializing in larger groups may also lower stress levels, reduce harassment from males, and provide help in caring for young.

The team analyzed the social behaviors of the wild giraffes using network algorithms. The analysis showed that giraffes are surprisingly similar to humans and other primates in their social habits.

"It seems to be beneficial for female giraffes to connect with a greater number of others and develop a sense of larger community, but without a strong sense of exclusive subgroup affiliation," said Bond.

The study is published in the journal <a href="https://royalsocietypublishing.org/journal/rspb">Proceedings of the Royal Society B</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Female giraffes live longer when they stick together

Socialization makes a big difference in the life expectancy of...

<a href="https://www.earth.com/news/songbirds-rely-on-an-autism-gene-for-memorization/">Birds</a> grow thicker down feathers to survive the cold conditions in high elevations, according to a new study. The researchers examined feathers across 249 species of Himalayan songbirds using a collection of bird specimens at the <a href="http://naturalhistory.si.edu/">Smithsonian National Museum of Natural History</a>.

To regulate their body temperature, birds grow a layer of fluffy down insulation between their bodies and their outermost feathers.

The study revealed that birds living at higher elevations have more down feathers than birds living at lower elevations. The experts also found that smaller birds, which lose heat faster than large birds, grow longer down feathers in proportion to their body size.

The research highlights the importance of feathers in helping birds adapt to their environment, and suggests that adding down may be a common strategy among songbirds. The findings may ultimately help researchers predict which birds are most vulnerable to climate change by simply studying their feathers.

"The Himalayas are seeing some of the fastest rates of warming on Earth," said study lead author Sahas Barve. "At the same time, climate change is driving an increase in the frequency and intensity of extremely cold events like snowstorms. Being able to accurately predict the temperatures a bird can withstand could give us a new tool to predict how certain species might respond to climate change."

During a frigid morning of field work in the Sho-kharkh forest of the Himalayas, Barve observed a tiny goldcrest dashing across the treetops. He wondered how this little bird, which weighed about as much as a teaspoon of sugar, was able to thrive in frigid conditions. Barve set out to investigate whether Himalayan birds wear their own version of down jackets.

While previous studies suggested that birds from colder habitats had extra down feathers, Barve said this is the first study to analyze this pattern for such a large number of species in cold environments and across 15,000 feet of elevation.

The researchers used a microscope to image the chest feathers of 1,715 specimens from the high-altitude Himalayan Mountains. The team analyzed the photos to determine how long each feather's downy section was relative to its total length. 

The analysis revealed that the birds from the highest elevations, as well as the smallest birds, tended to have the highest proportion of down on their body feathers. Small birds had down feathers that were three times as long as the largest birds, while high-elevation birds had up to 25 percent more down.

"Seeing this correlation across so many species makes our findings more general and lets us say these results suggest all passerine birds may show this pattern," said Barve. "And we never would have been able to look at so many different species and get at this more general pattern of evolution without the Smithsonian's collections."

Study co-author Carla Dove said she was excited to work together with Barve to use the Smithsonian's collections in a new way. 

"Sahas looked at more than 1,700 specimens. Having them all in one place in downtown Washington, D.C., as opposed to having to go to the Himalayas and study these birds in the wild, obviously makes a big difference. It allowed him to gather the data he needed quickly before the COVID lockdowns swept the globe, and then work on the analysis remotely."

According to Dove, the potential to use these results to predict how some birds will cope with climate change demonstrates the value of museum collections. 

"We have more than 620,000 bird specimens collected over the past 200 years waiting for studies like this. We don't know what our specimens will be used for down the line; that's why we have to maintain them and keep enhancing them. These specimens from the past can be used to predict the future."

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/16000587">Ecography</a>. 

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Birds grow more down feathers in higher elevations

Birds grow thicker down feathers to survive the cold conditions...

Around 10,000 years ago, the largest mammals in North America completely vanished. Megafauna including mammoths, ground sloths, and giant beavers were widely believed to have fallen victim to overhunting by rapidly expanding human populations, with climate change playing a significant role in the extinctions as well. 

But now, experts at the <a href="https://www.ice.mpg.de/">Max Planck Institute for Chemical Ecology</a> have found that climate change actually played a leading role in the disappearance of North American megafauna. 

Based on a new statistical modeling approach, the study shows that a drastic decrease in temperatures around 13,000 years ago likely initiated the decline of <a href="https://www.earth.com/news/vanishing-giants-study-reveals-shocking-decline-of-large-mammals-in-africa/" target="_blank" rel="noopener">giant mammal populations</a>. 

For the last six decades, the prevailing theory was that the arrival of specialized "big-game" hunters in North America about 14,000 years ago led to the rapid decline of large mammals. 

It has also been debated that there is not enough archaeological evidence that overhunting was persistent or widespread enough to cause extinctions. Instead, dramatic climate and ecological changes may have been responsible for megafauna extinctions.

Around the time of the extinction event, there were two major climate changes, beginning with a period of abrupt warming that began around 14,700 years ago. This climate warming was followed by a cold snap around 12,900 years ago during which the Northern Hemisphere returned to near-glacial conditions. 

"A common approach has been to try to determine the timing of megafauna extinctions and to see how they align with human arrival in the Americas or some climatic event," said study co-lead author Mathew Stewart. 

"However, extinction is a process - meaning that it unfolds over some span of time - and so to understand what caused the demise of North America's megafauna, it's crucial that we understand how their populations fluctuated in the lead up to extinction. Without those long-term patterns, all we can see are rough coincidences."

Traditionally, experts have used the radiocarbon record to estimate past population sizes, but there is a level of uncertainty associated with radiocarbon dates.

"As a result, you can end up seeing trends in the data that don't really exist, making this method rather unsuitable for capturing changes in past population levels," explained study co-lead author W. Christopher Carleton.

"Using simulation studies where we know what the real patterns in the data are, we have been able to show that the new method does not have the same problems. As a result, our method is able to do a much better job capturing through-time changes in population levels using the radiocarbon record."

To investigate, the researchers applied a new statistical approach that was developed by Carleton. The results show that megafauna populations fluctuated in response to climate change.

"Megafauna populations appear to have been increasing as North American began to warm around 14,700 years ago," said Stewart. "But we then see a shift in this trend around 12,900 years ago as North America began to drastically cool, and shortly after this we begin to see the extinctions of megafauna occur."

While the findings suggest that the return to near glacial conditions was the direct cause for megafauna extinctions, human activities such as overhunting and habitat modification likely played an indirect role. 

"We must consider the ecological changes associated with these climate changes at both a continental and regional scale if we want to have a proper understanding of what drove these extinctions," explained study senior author Huw Groucutt. 

"Humans also aren't completely off the hook, as it remains possible that they played a more nuanced role in the megafauna extinctions than simple overkill models suggest."

The study is published in the journal <a href="https://www.nature.com/ncomms">Nature Communications</a>.

---

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

North America's largest mammals were a casualty of climate change

Around 10,000 years ago, the largest mammals in North America...

A major shift in atmospheric <a href="https://www.earth.com/news/active-travel-can-greatly-reduce-co2-emissions-in-the-city/">CO2</a> levels may have helped dinosaurs make a 6,500-mile journey from South America to Greenland, according to a new study from the <a href="https://www.earth.columbia.edu/">Earth Institute at Columbia University</a>.

A group of long-necked, herbivorous dinosaurs known as sauropodomorphs arrived in Greenland sometime between 225 and 205 million years ago. 

The new study has matched ancient magnetism patterns in rock layers at fossil sites across South America, Arizona, New Jersey, Europe, and Greenland, to determine that the dinosaurs completed this migration around 214 million years ago. At this time, all of the continents were still connected as part of the supercontinent Pangea.

Fossil records show that sauropodomorphs first appeared in Argentina and Brazil about 230 million years ago, which raises the question of why it took them so long to expand into the Northern Hemisphere.

"In principle, the dinosaurs could have walked from almost one pole to the other," explained study co-author Dennis Kent. "There was no ocean in between. There were no big mountains. And yet it took 15 million years. It's as if snails could have done it faster."

Kent estimated that if a dinosaur herd walked only one mile per day, it would take less than 20 years to make the journey between South America and Greenland.

Up until about 215 million years ago, the Triassic period had experienced extremely high levels of CO2 at around 4,000 parts per million. Between 215 and 212 million years ago, the CO2 concentration dropped by half. This would have been the same time that sauropodomorphs set out on their long journey to Greenland.

The researchers theorize that the plummeting CO2 levels and the sauropodomorph migration are linked. They suggest that the milder levels of CO2 may have helped to remove climatic barriers that had limited the sauropodomorphs to South America.

The study authors explained that on a planet supercharged with CO2, there were likely climate extremes that would have prevented the dinosaurs from migrating. "We know that with higher CO2, the dry gets drier and the wet gets wetter," said Kent.

When the CO2 levels dipped 215 to 212 million years ago, the tropical regions may have become more mild, and the arid regions could have become less dry. Certain passageways may have developed, such as along rivers or lakes, that would have helped sustain the herbivores along the way to Greenland.

"Once they arrived in Greenland, it looked like they settled in. They hung around as a long fossil record after that." 

Kent said the idea that a dip in CO2 could have helped these dinosaurs to overcome a climatic barrier is speculative but plausible, and it seems to be supported by the fossil record.

The study is published in the journal <a href="https://www.pnas.org/">Proceedings of the National Academy of Sciences</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Dinosaur migration was made possible by a major climate shift

A major shift in atmospheric CO2 levels may have helped...

<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=lHHxOej4QfE
</div><figcaption class="wp-element-caption">Researchers found a correlation between Alzheimer's disease and traffic pollution.</figcaption></figure>



<h2 class="wp-block-heading" id="h-invisible-threat-in-urban-air">Invisible threat in urban air</h2>



City dwellers face an unseen danger with every breath. New findings from Emory University researchers suggest that fine particulate matter from <a href="http://earth.com/news/traffic-related-air-pollution-might-increase-alzheimers-risk/" target="_blank" rel="noreferrer noopener">vehicle emissions may significantly elevate the risk of developing Alzheimer's disease</a>. The study examined brain tissue samples from 224 individuals who had confirmed diagnoses and volunteered their brains for scientific research.



<h2 class="wp-block-heading" id="h-disturbing-connections-emerge">Disturbing connections emerge</h2>



Scientists analyzed neuritic plaques — protein clusters that characterize Alzheimer's — while mapping each participant's exposure to PM2.5 particles based on residential location and surrounding traffic density. The correlation proved more alarming than anticipated. Individuals experiencing higher pollution exposure showed nearly double the likelihood of elevated plaque accumulation in brain tissue.



<h2 class="wp-block-heading" id="h-timing-matters">Timing matters</h2>



The research team discovered that pollution exposure during the final year before death demonstrated the strongest association with brain changes. This timeline suggests relatively rapid impacts from environmental toxins on neural health. The connection remained robust even after accounting for various demographic and health factors.



<h2 class="wp-block-heading" id="h-genetic-vulnerability-patterns">Genetic vulnerability patterns</h2>



Perhaps most concerning, people lacking the APOE gene—which naturally predisposes individuals to Alzheimer's — exhibited more than twice the susceptibility to pollution-related brain damage. Study author Dr. Anke Huels noted this indicates environmental elements like air contamination could trigger the disease in cases where hereditary factors don't explain.



<h2 class="wp-block-heading" id="h-public-health-implications">Public health implications</h2>



These findings, published in <a href="https://www.neurology.org/" target="_blank" rel="noreferrer noopener">Neurology</a>, underscore the critical importance of air quality regulations in urban planning. The research suggests that implementing stricter emission controls and promoting alternative transportation could serve as powerful tools in Alzheimer's prevention.



As cities worldwide grapple with growing traffic congestion and aging populations, this study highlights an urgent need for comprehensive approaches to environmental health that protect both our lungs and our minds.



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Traffic fumes may trigger Alzheimer's

https://www.youtube.com/watch?v=lHHxOej4QfE Researchers found a correlation between Alzheimer's disease and traffic...

<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=K0DuSr87SHY
</div><figcaption class="wp-element-caption">57 million-year ice age mystery solved by Australian scientists.</figcaption></figure>



<h2 class="wp-block-heading" id="h-when-earth-became-a-frozen-wasteland">When Earth became a frozen wasteland</h2>



Imagine Earth as a giant snowball, frozen solid from the North Pole to the equator. This wasn't the plot of a science fiction movie – it was our planet's reality 700 million years ago during an extreme ice age that has puzzled scientists for decades.



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



Australian researchers from the <a href="https://www.sydney.edu.au/" target="_blank" rel="noreferrer noopener">University of Sydney</a> have finally cracked one of geology's greatest mysteries: what caused the Sturtian glaciation and why it persisted for an unprecedented 57 million years. This period occurred long before dinosaurs roamed the Earth, when no complex plants or multicellular animals existed.



Dr. Adriana Dutkiewicz, the study's lead author, describes a world completely unlike today's climate. "Imagine the Earth almost completely frozen over," she explained. "The planet was blanketed in ice from poles to equator, and temperatures plunged."



<h2 class="wp-block-heading" id="h-the-combination-of-climate-factors">The combination of climate factors</h2>



The research team discovered that this massive freeze resulted from a "double whammy" of geological events. First, plate tectonic activity reduced volcanic carbon dioxide emissions to historically low levels. Volcanic activity typically releases CO2 into the atmosphere, creating a greenhouse effect that keeps Earth warm.



Simultaneously, weathering of volcanic rocks in what is now Canada actively absorbed atmospheric CO2, further reducing greenhouse gas concentrations. When atmospheric carbon dioxide levels dropped below 200 parts per million – less than half of today's levels – glaciation engulfed the entire planet.



<h2 class="wp-block-heading" id="h-modern-climate-implications">Modern climate implications</h2>



Published in the journal <a href="https://pubs.geoscienceworld.org/geology" target="_blank" rel="noreferrer noopener">Geology</a>, this research provides crucial insights into Earth's climate system. While geological climate changes occur over millions of years, the study emphasizes that human-induced climate change is happening at a pace ten times faster than previously observed natural changes, highlighting the urgent need to understand our planet's delicate climate balance.



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What caused the planet's longest ice age

https://www.youtube.com/watch?v=K0DuSr87SHY 57 million-year ice age mystery solved by Australian scientists....

<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=WXXGGiynIjs
</div><figcaption class="wp-element-caption">Greenland is not sinking. In fact, it is the opposite.</figcaption></figure>



<h2 class="wp-block-heading" id="h-a-contrasting-climate-response">A contrasting climate response</h2>



Most coastal towns are <a href="https://www.earth.com/news/sinking-land-will-intensify-the-effects-of-rising-sea-levels/" target="_blank" rel="noreferrer noopener">preparing for higher sea levels</a>, but <a href="https://www.earth.com/news/greenland-no-longer-has-to-worry-about-rising-sea-levels/" target="_blank" rel="noreferrer noopener">Greenland presents</a> a different scenario during climate change. The ground there is rising at a remarkable rate. Over the past decade, some areas have lifted about 20 centimeters, which translates to roughly 2 meters per century. This rate significantly exceeds current projections for sea level rise.



<h2 class="wp-block-heading" id="h-geological-rebound-process-through-climate-change">Geological rebound process through climate change</h2>



The mechanism behind this phenomenon is straightforward. As the ice sheet melts, the immense weight is removed from the bedrock, causing the land to rebound upward. This process resembles the way compressed material springs back when pressure is released.



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



Researchers at the <a href="https://www.dtu.dk/english/" target="_blank" rel="noreferrer noopener">Technical University of Denmark</a> are documenting this uplift using the GNET network, consisting of 61 GPS stations positioned around Greenland's coast. These sensors can detect movement with millimeter precision, providing detailed measurements of the ongoing changes.



The data reveal that current uplift rates exceed the gradual rebound occurring since the last ice age ended approximately 12,000 years ago. This acceleration corresponds directly with increased ice sheet melting rates.



<h2 class="wp-block-heading" id="h-coastal-transformation">Coastal Transformation</h2>



This uplift is actively reshaping Greenland's coastline. New islands and rocky formations, called "skerries," are emerging as previously submerged land surfaces rise above the water level. This represents a notable contrast to global concerns about rising seas.



The study, published in Geophysical Research Letters, demonstrates the varied regional impacts of climate change. While many locations face rising water levels, Greenland's bedrock is literally rising above the surrounding seas.



The full study was recently published in <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL104851" target="_blank" rel="noreferrer noopener">Geophysical Research Letters</a>.



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Greenland's ground rises while coasts worldwide face higher seas

https://www.youtube.com/watch?v=WXXGGiynIjs Greenland is not sinking. In fact, it is the...

<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=DSM3EVeGHJU
</div><figcaption class="wp-element-caption">Companies like MindStudio help companies train their employees to implement the latest AI Agent building platform.</figcaption></figure>



<h2 class="wp-block-heading" id="h-ai-agent-training-transforms-the-workplace-fear-factor-into-a-competitive-advantage">AI agent training transforms the workplace 'fear factor' into a competitive advantage</h2>



Organizations that offer comprehensive artificial intelligence training to their workers find remarkable value that extends well beyond basic <a href="https://www.earth.com/news/mind-wandering-might-be-more-productive-than-you-think/" target="_blank" rel="noreferrer noopener">productivity improvements</a>. Emerging research demonstrates that carefully crafted AI training programs <a href="https://www.earth.com/news/ai-does-not-replace-human-creativity-but-enhances-it/" target="_blank" rel="noreferrer noopener">enhance</a> corporate performance, lower operational costs, and dramatically improve employee psychological well-being by turning workplace uncertainty into professional empowerment.



<h2 class="wp-block-heading" id="h-addressing-the-widespread-ai-anxiety-crisis-among-us">Addressing the widespread 'AI anxiety' crisis among us</h2>



A staggering 53% of employees expressed concern that the use of AI tools to automate work tasks could make them appear disposable to their employers, according to <a href="https://www.microsoft.com/" target="_blank" rel="noreferrer noopener">Microsoft</a>'s 2024 workplace survey. Such pervasive worry about being substituted by machines has caused what researchers have termed "AI technostress" – a psychological state that can result in occupational burnout and poorer mental well-being.



Data published in <a href="https://www.nature.com/palcomms/" target="_blank" rel="noreferrer noopener">Humanities and Social Sciences Communications</a> showed that belief in AI learning ability was a moderator in the link between technology adoption and work pressure, and higher confidence significantly lowered negative psychological responses. Workers provided ample training to become competent with AI software have significantly lower stress.



Companies like <a href="https://www.mindstudio.ai/" target="_blank" rel="noreferrer noopener">MindStudio</a> have platforms for building what are known as "AI Agents". In essence, AI Agents are simply tools that employees can build for themselves or their teams quickly and inexpensively. MindStudio will even train entire companies, from the CEO on down, at no cost. By letting MindStudio empower employees, companies avoid hiring more IT staff, buying more software, and implementing solutions to problems that do not exist.



MindStudio even has partners locally for companies, like <a href="http://www.dominnus.com" target="_blank" rel="noreferrer noopener">Dominnus</a> with offices in the Carolinas, California, and Denver, to help build AI Agents and support employees as they become resident AI experts for their organization. The training provided by MindStudio is applicable across other AI Agent building platforms as well.



<h2 class="wp-block-heading" id="h-revolutionary-productivity-through-focused-learning">Revolutionary productivity through focused learning</h2>



Organizations that implement large-scale AI training programs achieve dramatic outcomes. Employees performed tasks significantly better when they utilized AI support compared to when they didn't, according to <a href="https://www.nngroup.com/" target="_blank" rel="noreferrer noopener">Nielsen Norman Group</a> research findings. Their study documented productivity increases of 66% for a variety of professional tasks.



Federal Reserve Bank of St. Louis research finds workers record 33% higher productivity in time working with generative AI tools. The benefit is equivalent to 5.4% of work time savings for AI users – around 2.2 hours per week for full-time workers.



<h2 class="wp-block-heading" id="h-psychological-well-being-benefits-through-ai-competence">Psychological well-being benefits through AI competence</h2>



The emotional transformation when employees are provided with proper technology training is a fundamental transformation from fear to professional confidence. A survey of 600 employees across industries, carried out by ScienceDirect, proved that AI capabilities strengthen work environment commitment and improve job satisfaction.



A <a href="https://www.lut.fi/en" target="_blank" rel="noreferrer noopener">LUT University</a> study discovered that AI adoption has no direct effect on workers' well-being but does so indirectly through working conditions like task optimization and safety protocols. Strategically deployed AI that involves correct training can actually increase workplace mental well-being.



<h2 class="wp-block-heading" id="h-from-replacement-anxiety-to-partnership-confidence">From 'replacement anxiety' to 'partnership confidence'</h2>



Although 35% of those interviewed in recent McKinsey studies were concerned about workforce displacement, firms with large-scale training initiatives witness such fears dissipate quickly. The World Economic Forum found that two out of three respondents believe AI competencies will enhance their career prospects and job marketability.



This shift from fear to trust has measurable implications for job satisfaction. Applied Sciences research indicates AI can create tailored wellness programs based on individual employee requirements.



<h2 class="wp-block-heading" id="h-financial-benefits-of-increased-retention">Financial benefits of increased retention</h2>



The mental health advantages of AI learning have a direct impact on organizational bottom lines in the form of a positive feedback cycle with high retention of employees. Recent ROI research validates that artificial intelligence learning has a beneficial impact on employee turnover and satisfaction levels.



PriceWaterhouseCoopers' research documents 20% to 30% improvements in productivity, market speed, and revenue in organizations that attempt systematic AI adoption through comprehensive training.



<h2 class="wp-block-heading" id="h-environmental-advantages-of-ai-enabled-teams">Environmental advantages of AI-enabled teams</h2>



AI training has unforeseen environmental benefits as it makes the work environment more efficient. According to a study in Scientific Reports, the carbon footprint in writing and illustrating work is significantly lower when AI performs it compared to humans. AI software produces 130 to 1,500 times less CO2 equivalent per page of text created than human authors.



In addition, AI-driven remote work functionality significantly reduces environmental impact. Research by Cornell University and Microsoft indicates that remote workers reduce greenhouse gas emissions by up to 54% by not commuting daily to offices. Hybrid workers working remotely two to four days a week can reduce their carbon footprint by 11% to 29%.



<h2 class="wp-block-heading" id="h-cumulative-organizational-advantages">Cumulative organizational advantages</h2>



The compounding gains of better mental well-being, reduced turnover, increased productivity, and environmental benefits flow to enterprises from the pairing. McKinsey analysis estimates the long-term AI potential at $4.4 trillion in incremental productivity growth opportunity from business use cases.



As of now, 75% of knowledge workers globally utilize generative AI, mirroring widespread adoption patterns. Organizations that provide organized training and assistance see the most favorable results in productivity, worker satisfaction, and ecological sustainability.



The research overwhelmingly indicates that companies that invest in proper AI education, like that offered through <a href="https://www.mindstudio.ai" target="_blank" rel="noreferrer noopener">MindStudio</a>, establish win-win scenarios where employees are both more empowered and less stressed, and companies enjoy the gains of increased productivity, reduced turnover, and improved mental health outcomes throughout their workforce.



For more on MindStudio's free AI training for companies, visit the website's of MindStudio and Dominnus from the links below.



The research was published across a variety of peer-reviewed journals, including <a href="https://www.nature.com/palcomms/" target="_blank" rel="noreferrer noopener">Humanities and Social Sciences Communications</a>, <a href="https://www.frontiersin.org/journals/artificial-intelligence" target="_blank" rel="noreferrer noopener">Frontiers in Artificial Intelligence</a>, and <a href="https://www.mdpi.com/journal/applsci">Applied Sciences</a>.



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MindStudio.AI: <a href="https://www.mindstudio.ai" target="_blank" rel="noreferrer noopener">https://www.mindstudio.ai</a>



Dominnus: <a href="https://www.dominnus.com" target="_blank" rel="noreferrer noopener">https://www.dominnus.com</a>

AI agent training boosts mental health and profits

https://www.youtube.com/watch?v=DSM3EVeGHJU Companies like MindStudio help companies train their employees to...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=0HDXqTGEmi4
</div><figcaption class="wp-element-caption">Scientists give plants superpowers against bacterial disease</figcaption></figure>



<h2 class="wp-block-heading" id="h-a-natural-solution-to-disease-through-crop-modification">A natural solution to disease through crop modification.</h2>



The agricultural industry stands at a crossroads between productivity and environmental responsibility, and crop modification often carries a negative connotation. While chemical pesticides have long been the go-to solution for crop protection, their harmful effects on ecosystems and human health have prompted scientists to seek alternatives. The recent breakthrough by <a href="https://www.southampton.ac.uk/" target="_blank" rel="noreferrer noopener">University of Southampton</a> researchers offers a promising path forward through the precise manipulation of plant-associated microbial communities.



<h2 class="wp-block-heading" id="h-the-science-behind-microbial-partnerships">The science behind microbial partnerships</h2>



Plants naturally harbor diverse ecosystems of bacteria, fungi, and other microorganisms that function as biological allies. These microscopic partners contribute to disease resistance, nutrient absorption, and stress tolerance. However, until now, scientists lacked the tools to deliberately reshape these communities to enhance crop protection.



The Southampton team's approach centered on <a href="https://www.earth.com/news/engineered-plant-microbiomes-the-future-of-crop-protection/" target="_blank" rel="noreferrer noopener">modifying lignin biosynthesis genes in rice plants</a>. This strategic intervention altered the plant's metabolic output, creating conditions that favored beneficial bacterial populations while suppressing harmful ones. The result was a living defense system embedded within the plant itself.



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



The successful demonstration against Xanthomonas oryzae, the pathogen responsible for bacterial blight in rice, represents more than a laboratory achievement. Rice feeds nearly half the world's population, and bacterial blight causes devastating crop losses annually. Traditional control methods rely heavily on pesticides that contaminate soil and water systems.



<h2 class="wp-block-heading" id="h-looking-beyond-disease-resistance">Looking Beyond Disease Resistance</h2>



While disease protection represents the immediate application, the research framework opens doors to broader agricultural improvements. Future developments could engineer microbiomes to enhance nutrient uptake, reducing dependence on synthetic fertilizers. This dual benefit addresses both crop productivity and environmental sustainability.



<h2 class="wp-block-heading" id="h-the-path-forward">The path forward</h2>



As this technology advances from laboratory to field applications, it promises to reshape sustainable agriculture. The ability to program plants with their own biological defense systems could herald a new era where crops protect themselves naturally, reducing chemical inputs while maintaining yields necessary for global food security.



The study is published in the journal&nbsp;<a href="http://dx.doi.org/10.1038/s41467-023-44335-3" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



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Revolutionizing agriculture through microbiome engineering

https://www.youtube.com/watch?v=0HDXqTGEmi4 Scientists give plants superpowers against bacterial disease A natural...

<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...

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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https://youtu.be/Ug657J67iEo?si=w96YjGMsg939LD_3
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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 <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.



“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. 



The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.



“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;



“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”



The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;



The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.



Video Credit: Amanda Nguyen/University of Illinois



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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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Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes the first comprehensive estimate of carbon density in the Saharan, Sahel, and Sudanian zones of Africa. In an effort to measure the amount of carbon stored across these drylands, a team of scientists used high-resolution satellite images and artificial intelligence to map nearly 10 billion individual trees. 



"The high spatial resolution (50 cm) combined with AI and field measurements used in this study is key to improving tree inventories in drylands," said Pierre Hiernaux, a French researcher working for NASA. "The ever-increasing availability of very high-resolution satellite imagery will make it possible to assess carbon pools and their dynamics at the individual tree level on a global scale."



"This study is exceptional because it is pioneering a type of approach that will revolutionize the monitoring of trees and forests on a global scale: in the short term, it will be possible to map the world's trees from the centre of the Amazon to our schoolyards," said <a href="https://www.inrae.fr/en">INRAE</a> researcher Jean-Pierre Wigneron.



"Many fields of application will become much more efficient and accurate, such as tracking carbon stocks, biodiversity, monitoring logging and protection against illegal forest degradation, in near real time.”



Video Credit: NASA Goddard&nbsp;



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



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

Remote sensing will revolutionize the way we monitor trees

[sendtonews key="EjmSP20gQK-2593093-12187" type="single"] Today's Video of the Day from NASA...

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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 <a href="https://www.nasa.gov/goddard">NASA Goddard</a> features a visual dataset of.methane emissions from wetlands across the globe. Atmospheric methane levels have reached record highs in recent years, and wetlands are a major source of these emissions.&nbsp;



"Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming," says NASA.



"Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands."&nbsp;



According to NASA, understanding methane emissions from wetlands and other natural sources is critically important for scientists and policymakers who are working to combat climate change by reducing emissions from human activities.



Video Credit: NASA Goddard



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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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Wetlands are a major source of methane emissions

[sendtonews key="f8fukm28Vz-2491833-12187" type="single"] Today's Video of the Day from NASA...

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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 <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes how record-breaking heat expressed itself around the world in 2022.



Scientists have determined that 2022 was the 5th warmest year since 1880. Furthermore, the last nine consecutive years have been the warmest on record.



From devastating floods and wildfires to natural disasters like Hurricane Ian, 2022 showed us yet again how a warming climate affects people across the globe.&nbsp;



"As we look back at 20:22 and years past, we see that each year we better understand the challenges we face and how important it is to meet them," says NASA.



Video/ Image Credit: NASA Goddard



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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.

2022 illustrated the consequences of a warming climate

[sendtonews key="3UUsNkFOuS-2487333-12187" type="single"] Today's Video of the Day from NASA...

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



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



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



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



Video Credit: NASA Goddard&nbsp;



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



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

Satellites reveal how Earth's systems are interconnected

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

Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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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.

Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



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.

Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes how Earth is unique in our solar system for its ability to sustain liquid water on its surface. But now, the water cycle is shifting as the climate warms, and scientists must find ways to predict how these changes will affect water availability.



Overall, 96 percent of Earth's water is saltwater, and nearly all of freshwater is found in ice and groundwater. These sources of water are linked as it passes through solid, liquid and gas phases.



In a warmer climate, the water cycle will be transformed. It will be easier for water to evaporate and form clouds, and storms will become more frequent and intense. Some regions will get too much water, while others will be left without enough water. In addition, soil moisture will be lost - which threatens food security.



Scientists are using satellite data from over the last 40 years to track changes that are happening in the water cycle. This will ultimately help us prepare for extreme events and better manage our water resources, according to ESA.



Video 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.

Tracking changes in Earth's water cycle

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Saturn,-,High,Resolution,3d,Images,Presents,Planets,Of,The

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard Space Flight Center</a> features images of Saturn from NASA’s Hubble Space Telescope. The photographs capture the start of the mysterious "spoke season" on Saturn - when unexplained features appear on its rings. 



According to NASA, both the cause of the spokes and their seasonal variability have yet to be fully explained by planetary scientists.



"Like Earth, Saturn is tilted on its axis and therefore has four seasons, though because of Saturn's much larger orbit, each season lasts approximately seven Earth years. Equinox occurs when the rings are tilted edge-on to the Sun," explains NASA.



"The spokes disappear when it is near summer or winter solstice on Saturn. (When the Sun appears to reach either its highest or lowest latitude in the northern or southern hemisphere of a planet.) As the autumnal equinox of Saturn's northern hemisphere on May 6, 2025, draws near, the spokes are expected to become increasingly prominent and observable."



Experts believe that the spokes may be a product of the planet's variable magnetic field. When magnetic fields interact with solar wind, an electrically charged environment is created. This phenomenon is visible on Earth as the northern lights.&nbsp;



"Scientists think that the smallest, dust-sized icy ring particles can become charged as well, which temporarily levitates those particles above the rest of the larger icy particles and boulders in the rings," says NASA.



The spokes were first observed in the early 1980s by NASA's Voyager mission. Depending on the angle of the rings, the spokes can appear dark or light.



"Thanks to Hubble's OPAL program, which is building an archive of data on the outer solar system planets, we will have longer dedicated time to study Saturn’s spokes this season than ever before," said NASA senior planetary scientist Amy Simon, head of the Hubble Outer Planet Atmospheres Legacy (OPAL) program.



"Despite years of excellent observations by the Cassini mission, the precise beginning and duration of the spoke season is still unpredictable, rather like predicting the first storm during hurricane season."



Video Credit: NASA Goddard&nbsp;



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



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

Mysterious "spoke season" captured on Saturn

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