According to Al Gore, climate skeptics are the new racists: they say crazy things in casual conversation that others let slide — for now.

Here’s why Irene gave NYC a break.

NASA scientist James Hansen is planning to be arrested today at the Keystone XL protest. He told Climatewire that if President Obama approves the pipeline, he "was just greenwashing all along, like the other well-oiled coal-fired politicians."

On the West Coast, houses with energy efficiency certifications like Energy Star or LEED sell better than less-efficient houses.

Grist thanks its sponsors. Become one.

The U.S. solar industry increased exports 83 percent last year.