Activists mobilized on Monday at TransCanada offices in Houston and Westborough, Mass. Next up: big protests in D.C. and New England.
Spurred by its climate action plan, Boulder wants to dump its big coal-reliant utility and form a new municipal utility focused on clean power.
The mining of Alberta's tar sands has boosted levels of cancer-causing compounds in waterways up to 55 miles away, according to a new study.
Global venture investment in clean technology fell to $6.46 billion in 2012, down 33 percent from 2011. But there are bright signs for 2013.
Hybrid and electric cars account for just a tiny fraction of U.S. auto sales -- 3.3 percent in 2012. But that tiny fraction is growing fast!
A similar ballot measure was killed in California last year. Can a grassroots effort defeat big corporate money this time around?
A subsidiary of Warren Buffett's Berkshire Hathaway has paid $2.5 billion for one of the world's largest solar projects. The solar industry rejoices.
After one pipe exploded, Chevron's firefighters might have accidentally triggered the explosion of another one.
To get out of paying $6 million in state taxes, Shell decided to try to tow a drilling rig from Alaska to Seattle in the middle of a storm.