Solar is getting cheaper -- but not because of technology.
Installing wind devices could cut container ship fuel use by more than 10 percent, according to one expert.
Only 57 percent had ever set foot in the parks, but 85 percent want more of them -- especially in cities.
A set of canals, levees, and reservoirs that could have staunched Louisiana's floods had been deemed impractical.
Harley-Davidson has agreed to pay $12 million in fines to the Environmental Protection Agency for evading clean air laws.
The EPA's new regulations are a big deal -- both for the troposphere and for the lungs of anyone in trucking territory.
Tesla wants to glam up the boring world of roofing.
We’re in an era of cutthroat plug competition — which is both good and bad.
A new study from the journal Energy Economics has a plan to assimilate coal miners into the solar industry.