The drought and overuse of Colorado River water has led to an epic decline in water levels at Lake Mead.
The EPA is well within its rights to regulate mountaintop-removal coal mining, a federal appeals court decided.
Last year, Oklahoma's quake activity was more than 5,000 percent greater than normal. Underground injection of fracking wastewater might be the cause.
Japan and China want to buy gas from Siberia, so shipping companies are going to take a shortcut through melting ice.
A new analysis finds that flooding from storm surges is getting worse as sea levels rise.
The EPA has proposed new rules to cut use of HFCs, refrigerants that also happen to be potent greenhouse gases.
A new tool lets you see how hot it's going to get in your neck of the woods if we don't do anything about climate change.
Remember the hype about the greening of Christianity? Yeah, that, not so much.
European Union negotiators are pushing the U.S. to drop its crude oil export ban and increase exports of natural gas, according to a leaked document.