climate change

Science, Tech & Environment

The UN climate summit opens with a voice from an endangered nation

Leaders from all over the world have gathered in New York to attend the UN Climate Summit. The first thing they heard was an impassioned poem from a mother and activist from the Marshall Islands, a tiny nation in the Pacific that may no longer exists if climate change isn't halted.

Science, Tech & Environment

Storm expert says climate change may have played a big role in Typhoon Haiyan after all

Atmospheric scientist and tropical storm expert Kerry Emanuel has taken a deeper look at the possible influence of climate change on supertyphoon Haiyan, and has found that global warming may have had a good deal more to do with the storm's intensity than he originally thought.

Global Politics

California climate law under fire

Supporters of California's climate change law say it will spark a green technology revolution and boost the state's economy. Critics say it will hurt the state's economy at a time when it can ill afford it. Rachel Myrow has this story from San Francisco.