City lights shine all night amid the bustling traffic, businesses and neighborhoods of Southern California, one of the most populated areas that mountain lions call home.

Scientists have learned over the years that when aquatic organisms such as zooplankton become exposed to microplastics, they eat poorly. 

AI analysis shows pollution levels, extreme weather events and increasing temperatures devastate biodiversity in freshwater lakes.

Biodegradable waste from plant and animal sources released into freshwater ecosystems is a significant environmental concern.

The Environmental Protection Agency will review the use of a chemical found in tires that has been linked with the deaths of salmon on the U.S. West Coast.

Biochar, a charcoal made from heating discarded organic materials such as crop residues, offers a path to lowering atmospheric carbon dioxide (CO2) at a time when climate scientists warn that urgent action is needed limit CO2 in the atmosphere.

Short-term increases in fine particulate air pollution (PM2.5) during the summer and winter months in a mountain valley region of Utah were associated with increased health care visits for heart attack and unstable chest pain; however, the risk for each cardiac event differed by season, according to a preliminary study to be presented at the American Heart Association’s Scientific Sessions 2023. 

Humans have raised the level of mercury in the atmosphere sevenfold, largely by burning coal, a new study finds.

Eruption activity escalated at the Klyuchevskoy volcano on Russia’s Kamchatka Peninsula in autumn 2023.

Mountains of used plastic bottles get thrown away every day, but microbes could potentially tackle this problem.