West Coast killer whale species spotted grooming each other with kelp
Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known identification of “tool” usage by marine mammals. The “southern resident” killer...
View ArticleNewsom warns that California's water system may be ill-prepared to cope with...
California's existing groundwater infrastructure may fail to quench the state’s thirst in an increasingly arid future, even as officials celebrate widespread conservation achievements, Gov. Gavin...
View ArticleAgricultural contaminants in drinking water linked to higher preterm birth...
Exposure to a common agricultural contaminant in drinking water, even in small doses, may be linked to increased risks of preterm birth, a new study has found. The pollutant, called nitrate, is also...
View ArticlePrescribed burns can help reduce fire intensity and smoke pollution: Study
Prescribed burns can decrease the severity of future fires by about 16 percent and slash smoke pollution by 14 percent, a new study has found. These controlled blazes are much more effective outside...
View ArticleTrump admin urges Colorado River deal among states, but warns it will step in...
As Colorado River stakeholders scramble to negotiate the basin's long-term operational guidelines, the Trump administration is expressing support for a state-level consensus agreement — while warning...
View ArticleNew Harvard app identifies wildfire hot spots with biggest risk of smoke impacts
A new online platform could help communities detect a need for preventative fire management, with the goal of reducing subsequent smoke exposures. The app is able to identify not just where blazes are...
View ArticleGut microbes could offer protection from toxic 'forever chemicals': Study
Certain types of microbes found in the human gut can absorb toxic “forever chemicals” from their surroundings, a study has found. When scientists introduced the microbes into the guts of mice to...
View ArticleNewsom signs sweeping rollbacks of key California environmental review law
California Gov. Gavin Newsom (D) signed legislation Monday paring down the state’s landmark environmental review laws in a bid to cut red tape and make housing more accessible. As part of his 2025-26...
View ArticleAir pollution may be raising risk of lung cancer in 'never-smokers': Study
Exposure to air pollution, other contaminants and traditional herbal medicines may be contributing to the development of lung cancer in people who have little or no history of smoking, a new study has...
View ArticleScientists show how smarter flight decisions could help fight climate change
A team of University of California (UC) researchers say they have developed a tool that could help steer the aviation sector toward making smarter decisions when it comes to climate-related impacts....
View ArticleFeral honeybees are threatening other Southern Californian pollinators: Study
Wild honeybees in Southern California are devouring the food supplies of native pollinators — posing a potential threat to the region’s natural ecosystems, a new study has found. These feral insects,...
View ArticlePlunging snowpack levels may be curbing carbon storage capabilities of trees:...
Declining snow accumulation in the mountains of the Northeastern U.S. will likely reduce the ability of forests to act as a carbon sink, a study has found. The shrinking snowpack and destructive...
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Nearly two-thirds of US beaches saw fecal contamination last year: Report
As Americans flock to the country’s coasts — and to the lakes and rivers in between — in the heat of summer, they may be doing so despite the presence of fecal matter. A stark 1,930 out of 3,187...
View ArticleClimate change and aerosol pollution made drought inevitable in the US...
The combined effects of climate change and air pollution have led to direct declines in precipitation in the U.S. Southwest, making drought inevitable, a new study has shown. These circumstances,...
View ArticleHuman-induced warming contributed to 1,500 deaths in last week's European...
Climate change caused by humans played a direct role in the deaths of about 1,504 people during a heat wave that struck Europe last week, a new report has found. Warming linked to the combustion of...
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US vacation renters are wasting $2B worth of food every year: Study
Short-term rental lodgers across the United States may be wasting more than $2.3 billion in food each year, a new study has found. An average of $12 worth of uneaten groceries, takeout and restaurant...
View ArticleCalifornia has lost up to $3B in cap-and-trade revenue over past year: Report
California may have lost up to $3 billion in potential revenue from a signature emissions reduction program over the past year, a new report has found. The Golden State’s cap-and-trade program — a...
View ArticleArizona governor calls for probe into federal handling of Grand Canyon fire:...
Arizona Gov. Katie Hobbs (D) is demanding an investigation into the federal government’s handling of a fire that ravaged multiple sites along the Grand Canyon’s North Rim in recent days. “An incident...
View ArticleChina's success in cleaning up air pollution may have accelerated global...
Efforts to clean up air pollution in China and across East Asia may have inadvertently contributed to a spike in global warming, a new study has found. The decline in aerosol emissions — which can...
View ArticleToxic 'forever chemicals' have infiltrated Antarctic waters: Study
The frigid waters that surround Antarctica may be inhospitable to human inhabitance, but they are churning with the manmade relics of toxic chemical production, a new study has found. Certain types of...
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