AP - Smog, soot and other particles like the kind often seen hanging over Beijing add to global warming and may raise summer temperatures in the American heartland by three degrees in about 50 years, says a new federal science report released Thursday.

AFP - Some 5,000 years ago, on a day with weather much like today's, a prehistoric person tread high up in what is now the Swiss Alps, wearing goat leather pants, leather shoes and armed with a bow and arrows.

AFP - Climate change will melt the 21 remaining glaciers in the Pyrenees mountains before 2050, a group of Spanish researchers said Friday.

AP - Federal researchers are warning that warming temperatures could soon cause California's giant sequoia trees to die off more quickly unless forest managers plan with an eye toward climate change and the impact of a longer, harsher wildfire season.

Time.com - Rather than focusing on scary symptoms, the We Campaign focuses on the cure for global warming - and motivates people to support sweeping change. Question is, will it be enough to effect any real change at all?