Birds are migrating earlier as global temperatures rise
January 4, 2017, 11:41 a.m. by Jaymi Heimbuch
A new study shows that birds are arriving at breeding grounds earlier — and potentially missing out on food.
Carbon dioxide in Earth's atmosphere just reached a major milestone
September 29, 2016, 9:36 a.m. by Russell McLendon
CO2 data from Mauna Loa in Hawaii suggest 400 ppm is the new normal.
Extinct smallpox virus could be resurrected by global warming
August 22, 2016, 1:11 a.m. by Bryan Nelson
Melting permafrost threatens to exhume a smallpox graveyard in Siberia, and it could be a sign of what's to come.
As U.N. makes history on Earth Day, Leonardo DiCaprio reminds us not to rest on laurels
April 22, 2016, 2:31 p.m. by Russell McLendon
More than 170 world leaders signed the Paris Agreement on Earth Day 2016, but that's just the beginning.
Could cleaner air be worsening global warming?
December 28, 2015, 12:33 p.m. by Tia Ghose, LiveScience
Warming trends have spiked in certain areas of the world as they battle against smog.
Droughts could kill many of the world's trees
December 17, 2015, 10:39 a.m. by Tia Ghose, LiveScience
Plants suck up moisture through their roots and less moisture could cause a 'hydraulic failure.'
7 surprising facts about pigs
There's a possible link between this vaccine and a decline in type 1 diabetes
Divers come face-to-face with giant great white shark in thrilling video
13 natural solutions for killing and deterring ants
9 of the world's largest dog breeds
What is swamp cancer and how is it killing wild horses?