What caused this strange code-like pattern to form on an Icelandic lake?
March 13, 2017, 11:07 p.m. by Bryan Nelson
The real message might be a warning about climate change.
Do piles of snow in California's Sierras mean the 5-year-drought is over?
March 3, 2017, 3:49 p.m. by Starre Vartan
An epic winter season is likely to end dry spell.
Is spring early this year? Oh yes, and these maps spell out where
March 2, 2017, 7:37 a.m. by Mary Jo DiLonardo
Maps are updated daily to let you track spring's arrival across the U.S.