Water is made of hydrogen and oxygen, and sometimes these atoms are slightly heavier than usual. These heavier forms are called isotopes. As water evaporates or moves through the atmosphere, the ...

Climate change may lead to more precipitation and more intense floods. A new study shows that to understand the details of this relationship, it is important to distinguish between different types of ...

This rapid transition between wet and dry weather conditions is a hallmark of climate change, and it’s also an accelerating climate threat. This phenomenon is called “precipitation whiplashes,” and ...

To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of Earth, to the stratospheric polar vortex.

A woman walks through a snow covered path in Centreville, Md., on Feb. 12, 2025, after a winter storm brought heavy snow across the state and region. A woman walks through a snow covered path in ...

The Colorado River Basin, like much of the southwestern U.S., is experiencing a drought so historic—it began in 1999—that it's been called a megadrought. In the basin, whose river provides water to ...

Click the downloadable graphic: Top 10 Hottest Years in the U.S. Global carbon emissions from burning coal, oil, and methane gas climbed to their highest levels ever in 2024. This heat-trapping ...

As meteorological winter comes to an end, the National Oceanic and Atmospheric Administration's Climate Prediction Center has issued its three-month weather outlook, revealing temperature, ...