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.

President Obama is in no danger of being judged by history as an eco-radical.

In reality, studies show that investments to spur renewable energy and boost energy efficiency generate far more jobs than oil and coal.

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.

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.

Geoengineering - the deliberate, large-scale manipulation of the earth's climate to offset global warming - is a nightmare fix for 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.