Rainforest trees function as biological water pumps, drawing moisture from deep soil layers and releasing it into the atmosphere. 3% of total rainfall. This process remains remarkably stable even ...

Snow is back! Several inches here, a foot there. It can make for some dicey travel conditions on wintry, bitter cold days. Definitions for a snow emergency vary by state and county. In New York, there ...

Add Yahoo as a preferred source to see more of our stories on Google. A cyclist makes his way through foggy conditions at Concepcion Park in San Antonio. (Jerry Lara/San Antonio Express-News) Freezing ...

Snow, sleet, and freezing rain are the well-known winter precipitation types, but there's another that's less common called graupel. Learn when and how it forms in our latest edition of "Weather ...

In the colder months, temperatures can feel a lot more brutal when wind is involved. The lower the wind chill, the faster hypothermia and frostbite can set in. Watch the video above to learn how wind ...

Most of the western U.S., including the Lake Tahoe region of California and Nevada, has had an exceptionally warm winter—breaking records in many areas. And that unseasonable warmth may have caused a ...