Simply speaking while infected can potentially spread COVID-19

COVID-19 can spread from asymptomatic but infected people through small aerosol droplets in their exhaled breath. Most studies of the flow of exhaled air have focused on coughing or sneezing, which can send aerosols flying ...

Measuring air pollution in a post-COVID-19 world

Air pollution is one of the biggest environmental problems of our time. According to a new report from the European Environment Agency (EEA), air pollution now contributes to one in eight deaths in Europe. Observations from ...

A third of California methane traced to a few super-emitters

NASA scientists are helping California create a detailed, statewide inventory of methane point sources—highly concentrated methane releases from single sources—using a specialized airborne sensor. The new data, published ...

Fifty years after the Cuyahoga conflagration

On June 22, 1969, the Cuyahoga River, which flows through Cleveland, Ohio, caught fire. Although firefighters extinguished the blaze within 30 minutes, the shocking event helped galvanize the U.S. environmental movement. ...

page 1 from 2