Washington State University researchers have found that methane emissions from local natural gas distribution systems across the U.S. have decreased in the past 20 years.
The District of Columbia’s top environmental official will be taking a spin in a new car that’s powered by air.
Washington state would be expected to cut carbon emissions from its power plants by about 72 percent under the Obama Administration’s proposal to tackle global warming.
A bipartisan group formed by the Washington Legislature has been meeting with since spring to come up with ways to cut greenhouse gas pollution.
The Portland, Oregon-based company Precision Castparts Corp. has just been named the nation’s top industrial air polluter