Melina Laboucan-Massimo is leading the fight against tar-sands development in Canada -- and for the rights of indigenous women.
You probably aren't going to tango with a tiger shark anytime soon -- but David Shiffman does it on a weekly basis, for science.
Here's what the science says.
A new study shows it's not just hippies who distrust vaccines.
Jindal asks Obama to "not insert the divisive political agenda of liberal environmental activism" into his remarks. Obama is ignoring him.
Andrew and Sophie never planned to be commercial fishermen -- but they tried it for a summer. Here's what they learned.
There are many ways to juice your gadgets without throwing away mountains of dead batteries. Umbra charges through the options.
A new study shows that fruit-and-veggie quotas get kids to take more produce on their trays -- but they throw out more, too.
Global warming is making it tough for Hollywood to produce films set in winter.
Peer-reviewed studies that support skeptic talking points contain questionable physics and shoddy analysis.