New research paints an alarming picture of wildlife being contaminated by tar-sands extraction -- wildlife that First Nations have long hunted for food.
New research shows that a vegetarian diet is good for you and the climate, both. Just please, go easy on the lentils.
He used to invest in coal projects, but he doesn't anymore, and the climate movement is happy to welcome people who've newly seen the light.
A grassroots movement in California begins to make headway in a fight to protect rat-eating hawks from rodenticides.
Biologists say the majestic swimmers' "pump" mechanism filters the oceans of carbon.
Turkish herders found the most obvious solution to keeping their cellphones juiced: solar panels on donkeys.
A reader wonders if he can use rain barrel water for his garden. Umbra collects her thoughts.
For better or worse, we're running this planet now. What's wrong with saying we might be able to pull that off? A conversation between Andrew Revkin and Clive Hamilton.
Nelson Escobar brought traditional ideas of collective, community-sustaining farming from his home in El Salvador to Louisville, Ky.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.