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.

Patients who have preexisting respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD) and live in areas with high levels of air pollution have a greater chance of hospitalization if they contract COVID-19, says a University of Cincinnati researcher.

One consequence of the coronavirus pandemic has been global restrictions on mobility.

Scientists, led by researchers at the University of British Columbia, have discovered three liquid phases in aerosol particles, changing our understanding of air pollutants in the Earth’s atmosphere.

When winter storms threaten to make travel dangerous, people often turn to salt, spreading it liberally over highways, streets and sidewalks to melt snow and ice. 

Nitrogen is an element basic for life — plants need it, animals need it, it’s in our DNA — but when there’s too much nitrogen in the environment, things can go haywire.