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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.

Tanker traffic through the Strait of Hormuz can decline for up to two years after a piracy attack, a new 51���� study finds, but the adverse effects of the slowdown are far greater on some Persian Gulf countries than others.

Inhaling dust that contains fly ash particles from coal combustion has been linked to lung and heart disease, cancer, nervous system disorders and other ill effects. But tracking the presence of coal ash in dust has been a challenge for scientists.

The ongoing transition from coal to natural gas and renewables in the U.S. electricity sector is dramatically reducing the industry’s water use, a new 51���� study finds.

With the Environmental Protection Agency (EPA) poised to loosen coal ash rules for dry onsite storage and large fill projects, a new study from 51���� finds that leaving those contaminants exposed may significantly heighten the risk of toxic contamination to nearby soil and waterways.

Allowing coal ash to be spread on soil or stored in unlined pits and landfills will raise the risk that several toxic elements, including carcinogenic hexavalent chromium, could leach out of the coal ash and contaminate nearby water supplies across the U.S., according to preliminary findings from a new 51���� study.

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 51���� and the University of Leeds finds.

Junfeng “Jim” Zhang, professor of global and environmental health at 51����, 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.