It's not all Obama's fault: His plans to rebuild America's energy infrastructure have been hampered by the recession, and his efforts on global warming have been stymied by Tea Party wackos and weak-kneed Democrats in Congress.

The coal industry is an even larger part of the Australian economy than it is of the American, and it has an enormous amount of political power.

Nowhere has the political power of coal been more obvious than in presidential campaigns.

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

Have we failed to slow global warming pollution in part because climate and environmental activists have been too polite and well behaved?

In the United States, we do a pretty good job of protecting iconic landscapes and postcard views, but the ocean gets no respect.

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