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!
Melting ice sheets in Greenland and Antarctica could push sea levels up more than three feet by 2100, according to a survey of top glaciologists.
Here's hoping the president reads the newspaper while on vacation.
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.
Not to mention the area's ski resorts.
After one pipe exploded, Chevron's firefighters might have accidentally triggered the explosion of another one.