Some world leaders linked the threat of heatwaves, floods and drought to the potential for climate refugees and political instability.
Most scientists say failure to agree on strong measures in Paris would doom the world to ever-hotter average temperatures
Make the clouds fluffier. Build a giant umbrella over the sun.
Air quality in the city of 16 million is usually bad in winter, with thousands of coal fires lit by the...
Bill Gates will launch a complementary private-sector effort to fast-track early-stage clean energy technologies
People from all over the world join the 'No Planet B' protests ahead of the U.N. climate change conference in...
Hundreds of thousands of people on Sunday joined rallies across the globe, insisting that there is "No Planet B" in the...
new Kyoto agreement, which would be a Paris agreement, hopefully will be reached"
Momentum is building toward a comprehensive deal to curb greenhouse gases and the worst effects of global warming