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The proliferation of pits and ponds created in recent years by miners digging for small deposits of alluvial gold in Peru’s Amazon has dramatically altered the landscape and increased the risk of mercury exposure for indigenous communities and wildlife, a new study shows.

The stringent lockdown imposed by the Chinese government to slow the spread of COVID-19 early this year significantly eased the strain on hospitals there. Admissions due to non-COVID respiratory illnesses decreased by nearly 5,000, a new study by an international team of scientists shows.

91�������� researchers have developed a new online calculator that teachers, administrators and students can use to estimate the risk of airborne transmission of the COVID-19 virus in classrooms.

By providing the first estimate of how much hydrogen is available to fuel microbial life in the sunless sub-seafloor crust beneath the Mid-Ocean Ridge (MOR), a new 91��������-led study sheds light on one of Earth’s least understood biospheres.

Pollution declines from pandemic shutdowns may aid in answering long-standing questions about how aerosols influence climate.

Global methane levels have hit an all-time high after what appears to be a near-record yearly atmospheric increase in the potent greenhouse gas.

New NOAA analysis highlights an alarming trend; experts call for curbing pollution from oil and gas wells

Reforestation has been shown to cool surface temperatures, and a novel study suggests it may also reduce air temperature up to several stories above the ground.

Scientists have devised a simple new model that explains how the undesirable effects of urban heat islands vary across seasons. Their results could help cities in different climatic regions design heat mitigation strategies.

The ratio of carbon isotopes in three common species of tuna has changed substantially since 2000, suggesting major shifts are taking place in phytoplankton populations that form the base of the ocean’s food web, a new international study finds.

A new study which combines measurements from nearly 1,400 drinking water wells across North Carolina estimates that more than half of the wells in the state’s central region contain levels of cancer-causing hexavalent chromium in excess of state safety standards.

With the Environmental Protection Agency (EPA) poised to loosen coal ash rules for dry onsite storage and large fill projects, a new study from 91�������� finds that leaving those contaminants exposed may significantly heighten the risk of toxic contamination to nearby soil and waterways.

Reducing fossil fuel emissions steadily over coming years will prevent millions of premature deaths and help avoid the worst of climate change without causing the large spike in short-term warming that some studies have predicted, new analysis by researchers at 91�������� and the University of Leeds finds.

In his newest book, Sea Level Rise: A Slow Tsunami on America’s Shores, Orrin Pilkey paints an eye-opening picture of the impacts sea level rise will have on the United States by the end of the 21st century.

Junfeng “Jim” Zhang, professor of global and environmental health at 91��������, has received a $2 million grant to lead a four-year study on the effects of early-life and prenatal exposure to air pollution on birth weight and growth. These are two important predictors of childhood obesity.