The Tolo River community sells carbon credits to corporations via a United Nations program called REDD. The rewards go far beyond just money.
Security analysts in London and Baghdad say control of rivers and dams has become a major tactical weapon for ISIS.
Thanks to farm weddings, agrotourism, and Chipotle, agriculture seems downright glamorous. The truth is much dirtier than that.
Pollution and overfishing are killing off grazing fish, according to a new study, which is driving the region’s coral decline.
On the plus side for the squirrel, with no trees, it will be harder to make stakes.
We talked to Emily May, founder of Hollaback!, about why sexual harassment is so widespread on public transit, and what we can do to end it.
A coal mine expansion snags on the 'social cost of carbon protocol' — a boring bit of legalese that could one day prove invaluable in the climate fight.
The United Nations estimates that one-third of all food worldwide is wasted. A new breed of activists and entrepreneurs is out to stop that.
Cups or cans? That is the question. To which Umbra replies: "Neither."
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.