Explosive eruptions from the Caribbean volcano have flung ash and sulfate particles to the stratosphere.

The sudden, highly abundant presence of microplastics in the samples that came as a surprise.

The physical harm of living near a drilling site can rival that of secondhand smoke or living next to a freeway.

Researchers at Duke University have developed a method that uses machine learning, satellite imagery and weather data to autonomously find hotspots of heavy air pollution, city block by city block.

Last month saw the average concentration of atmospheric carbon dioxide (CO2) climb to almost 418 parts-per-million, a level not seen on Earth for millions of years. In order to get a sense of what our future may hold, scientists have been looking to the deep past.

Off the shores of Virginia, vast meadows of seagrass sway in the shallow waters. Over the past two decades, conservation scientists have spread more than 70 million seeds in the bays there, restoring 3,600 hectares (9,000 acres) of an ecosystem devastated by disease in the 1930s.

After an unusually dry winter, forest fires have raged throughout the mountainous country.

The tool will help people, including resource managers and other officials, to address increasing concentrations of methane and carbon dioxide in the atmosphere.

Massive Australian bushfires likely contributed to the large and persistent ozone hole in 2020.

The coronavirus pandemic has led researchers to switch gears or temporarily abandon projects due to health protocols or not being able to travel. But for Patrick Keys and Elizabeth Barnes, husband and wife scientists at Colorado State University, this past year led to a productive research collaboration.