The U.S. has seen once-in-500-year floods eight times already this year.
A new report reveals the big water problems California has yet to solve.
It's the return of smog city, as southern California gets hit by the worst pollution in years.
Algae is turning Rio's pools a frightening shade of green.
Host Wendy Zukerman debunks half-truths from industry and activists alike.
Forget the GMO-labeling bill. Here's one that matters.
Environmentalists pushed companies to sign up for the Indonesia Palm Oil Pledge — but now it’s gone.
The green group’s executive director has offered to fill one of those empty time-slots at the GOP convention.
Brexit may screw over young voters who care about climate change.