In the world of energy politics, the sudden vanishing of the word 'coal' is a remarkable and unprecedented event.

Among all the tests President Obama faced in his first term, his biggest failure was climate change.

One thing you can say about nuclear power: the people who believe it is the silver bullet for America's energy problems never give up.

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.

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

Compared to coal, which generates almost half the electricity in the United States, natural gas is indeed a cleaner, less polluting fuel. But compared to, say, solar, it's filthy. And of course there is nothing renewable about natural gas.

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