Constant warmth stymied Arctic sea ice growth this winter, setting a record-low maximum for the third year in a row.
In mid-March, snow and ice still frost the ground and winter's grip feels as strong as ever in many parts of the Northern Hemisphere.
Cases of Lyme disease in Michigan have risen dramatically in recent years, and a new study links that trend to larger and more widespread tick populations.
Unusually hot or cold weather may affect the birth weight of babies, a new study suggests.
A warm blob of water lurking in the Pacific Ocean in 2014 and 2015 led to a spike in ozone levels across the western U.S., new research suggests.
After years of dealing with a statewide drought, California is the snowiest place on earth right now.