You could say that progress on an international climate change agreement has been glacial, except that glaciers have been melting faster.
"This place would look a lot nicer covered with oil rigs instead of caribou"—said no one ever.
Hundreds of thousands of coal workers are losing their jobs. Labor and enviros together can bring about a just transition for them and their communities.
If you're worried about bird mortality, talk to your cat.
Sierra Club Foundation Director Peter Martin lined up among thousands of competitors at the annual Boston Marathon, to run for a cause that’s close to his heart.
Nonprofit Cool the Earth releases the environmental app for Earth Day
The Simi Hills in Southern California were recently blessed with two very furry baby girls! Welcome bobcat kittens B326 and B327.
With rallies, protests, lobbying, and letter-writing campaigns, Pennsylvania Sierra Club activists have been working to rein in their state's fracking juggernaut.
Matthew Kearns: Offshore wind energy activist, former member of the Sierra Club Long Island Group's executive committee, long-distance runner.
The world's population is unlikely to stop growing this century.