It's been a bit player, but solar power is about to shine.
Voters on a small Native American reservation are choosing between two candidates who want to crack down on the oil industry.
A new study shows that cleanup efforts barely scratched the surface.
Rep. Lamar Smith has launched an aggressive campaign against what he sees as misguided money management at the National Science Foundation.
California's drought is not expected to improve over the winter, according to new data from the National Oceanic and Atmospheric Administration.
Even if we solve the methane problem, shale gas alone won't save us.
The Defense Department says global warming "poses immediate risks to U.S. national security."
Turns out melting ice isn't the only thing the walruses have to worry about.
President Obama is among the world leaders talking about climate change in New York City.