The first ever report from the International Programme on the State of the Ocean warns of mass extinction of marine life.
If the environment continues to heat rapidly, permafrost will melt ever faster, releasing greenhouse gases to such an extent that it overwhelms any possible improvement by human action.
While scientists around the world are coming to a growing consensus concurring on the reality of global warming, Americans are being polarized along political lines.
It doesn't seem as if the big industrial nations are serious about trying to halt global warming.
Global climate change is putting humanity's most basic, most elemental needs increasingly at risk.
The Senate today set the stage to finally provide much needed aid to states to avoid teacher and other public employee layoffs, but only two Republicans voted for the measure.
Decades from now, climate scientist James Hansen will occupy a prominent place in our history books, but what we don't know now is whether humankind will heed his alarm or go on with business as usual.
Among the next big things — climate change legislation looms large.
Was the conference a bust, a success, a waste of time, or something else?
Sarah Palin, climate change "skeptics," Al Gore and an island nation that may disappear under the sea - all are weighing in as world leaders debate what to do about global warming.