Carbon pricing is the big political topic down under right now, in the run-up to a federal election to be held later this year.
In a trial that began this week, the cities are trying to force paint companies to clean up hazardous lead paint in 5 million homes.
The country plans to quadruple its solar generation capacity by 2015, taking advantage of cheap solar panel prices caused by a supply glut.
Leaving mangroves, coral reefs, and other shoreline habitats intact around the U.S. could help protect more than a million people, researchers say.
One reporter looked into the Kochs' interests in the Canadian oil industry and soon found himself under attack in Facebook and Google ads.
In a hopeful sign for bee fans, the once-common Western bumblebee has been glimpsed in Washington state for the first time since the mid-90s.
The agency is proposing new limits on the amount of cancer-causing arsenic allowed in apple juice. Arsenic contamination can be caused by pesticides.
The right-wing American Legislative Exchange Council has been pushing state bills to undermine renewable portfolio standards -- and losing.
Major nations are considering proposals to protect more than 1.5 million square miles of ocean. But will Russia and skeptical countries go along?