Elevated levels of nitrogen dioxide in the air may be associated with a high number of deaths from Covid-19.

A review of several major oil spills and how NOAA's roll in response to these events has evolved with time.

Unlike animals, which only digest proteins, carbohydrates and fats, microorganisms also feed on a variety of other organic compounds.

Jing Wang and his team at Empa and ETH Zurich usually work on measuring, analyzing and reducing airborne pollutants such as aerosols and artificially produced nanoparticles. 

In spring of 2019, researchers set out to investigate what chemicals could be found in the waters of Bangladesh.

This year marks the 50th anniversary of the Clean Air Act, which is responsible for dramatic improvements in air quality. 

When high in the atmosphere, ozone protects Earth from harmful solar radiation — but ozone at ground level is a significant pollutant.

Weak winds in the Pacific drove record-breaking 2019 summertime marine heat wave.

Rising CO2 causes more than a climate crisis—it may directly harm our ability to think.

Emissions of methane, a potent greenhouse gas, from water heaters are higher than previously estimated, especially for a new type of heater growing in popularity, a new Stanford study finds. But simple fixes exist.