Antonio J. Busalacchi, an expert in Earth’s climate system and experienced scientific administrator, has been named to a second five-year term as president of UCAR.

Pamitha Weerasinghe is joining UCAR from the Union of Concerned Scientists, where he served as the senior manager of government affairs. He previously worked for seven years on the staff of the U.S. House of Representatives Committee on Science, Space, and Technology.

The number of thunderstorms in Alaska may triple by later this century because of climate change, increasing the risks of widespread flash flooding, landslides, and lightning-induced wildfires.

Ozone in the lower atmosphere fell by 7% on average across the Northern Hemisphere, new research finds.

As snowpack in the Rocky Mountains declines with climate change, a new study warns that summertime rains are unlikely to significantly bolster stream levels.