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.

This Dewdrop World is a beautiful, courageous, intimate film about love and loss. It may also be the deepest meditation on climate change that I've ever seen.

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.

If you think Wall Street firms have it good, you haven't looked closely at Big Oil.

One of the big questions in the climate change debate: Are humans any smarter than frogs in a pot? If you put a frog in a pot and slowly turn up the heat, it won't jump out. Instead, it will enjoy the nice warm bath until it is cooked to death. We humans seem to be doing pretty much the same thing.

Extracting oil from the tar sands is a nasty, polluting, energy-intensive business.