global warming

Climate change is not only making the planet warmer, it is also making snowstorms stronger and more frequent, US scientists said on Tuesday.

The Penn State climate professor who has silently endured investigations, hostile questioning, legislative probes and attacks by colleagues has finally spoken out. He says he'll sue the makers of a satirical video that's a hit on You Tube. Their response: Bring it on.

The British government today raised the political stakes on climate change when it published a new map of the world that details the likely effects of a failure to cut greenhouse gas emissions.

Graphic images that reveal the devastating impact of global warming in the Arctic have been released by the US military. The photographs, taken by spy satellites over the past decade, confirm that in recent years vast areas in high latitudes have lost their ice cover in summer months.

Leaders of the world's leading industrialized nations are meeting with representatives of up-and-coming economies to tackle global warming at an economic summit Thursday in Italy.