At an action today in Washington, celebrities and activists try to put pressure on the president to reject the Keystone pipeline.
It depends on who wins.
One part of the Bay Area is getting rid of oysters for the sake of the environment, while another is eagerly reintroducing them.
French researchers say diets heavy on fruits and vegetables might not be so great for the planet, but they make some strange assumptions.
The board of Sanford, N.Y., got tired of hearing citizens oppose fracking in public meetings, so it barred the topic. Now it's being sued.
The Marine Stewardship Council is stamping its label on lots of seafood products, but many critics aren't convinced it represents sustainability.
More drilling means higher costs to drill, which is starting to cool the once-bearably-warm state.
A review of the Tesla Model S in the Times leads to lots of finger-pointing, but no clear answers.
If the weather in the U.S. were normal relative to the past, 2013 would be the most profitable year since 1973, says the USDA.