Video: Obama addresses U.N. on climate change
September 22, 2009, 10:45 a.m.
President Barack Obama challenged world leaders to join the United States in fighting global warming. Watch the entire 10-minute speech here.
Greenhouse gas emissions plunge along with economy
September 21, 2009, 1:28 p.m. by S.A. Rogers
Global financial crisis has a silver lining in the form of reduced greenhouse gas emissions, according to new study.
Climate refugees: Alaskan villagers move to higher ground
August 17, 2009, 4:05 a.m.
A coastal village in western Alaska is experiencing devastating erosion caused by climate change.
Scientists warn the world is about to reach 'peak meat'
Expect a mostly mild winter — but mild doesn't mean no surprises, says NOAA
Magnetic north shifting by 30 miles a year, might signal pole reversal
13 ominous photos and videos of roll clouds
What is freezing fog?
13 perfect snowflakes captured in photos