A reader asks for the facts on hydraulic fracturing. Umbra drills down.
The new business model would give utilities incentive to invest in energy efficiency.
A cover story on "The Childfree Life" recognizes the economic, social, and personal upsides to skipping parenting, but neglects to mention the environmental benefits.
In 2010, human activity caused 50 gigatonnes of greenhouse gas emissions. Here's how the sources compare.
Hold that burger: The USDA just announced the recall of "approximately 50,100 pounds of ground beef products."
Fast food workers are on the march nationwide. What, oh what, are the poor corporate fat cats to do?
The plane can fly on both standard aviation fuel and compressed natural gas.
Companies like Lyft and Sidecar say they're just tech-powered carpooling services, but that's not how it's working out in the streets.
Scientists see fresh evidence of a strong link between climate change and violence.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.