In the Arctic, things are already getting freaky. Temperatures have warmed three times faster than the global average.

Bloomberg is famously impatient with beltway politics and believes that to get anything done you need to work from the ground up.

Bill Gates is a relative newcomer to the fight against global warming, but he's already shifting the debate over climate change.

In the U.S. alone, weather disasters caused $50 billion in economic damages in 2010.

When it comes to energy, cost isn't everything - but it's a lot. Everybody wants cheap power.

Climate change is a global issue - from the point of view of the Earth's climate, a molecule of CO2 emitted in Bejing is the same as a molecule emitted in Sydney.

When it comes to global warming, coal is the gorilla in the room.