"We hope that our proposed method shows the viability of managing waste sustainably." Scientists develop mind-blowing method ...

A new project at a huge wastewater treatment plant in Duluth creates heat and power from the biogas that’s created during ...

A new project at a Roanoke County landfill will turn methane emissions into a steady stream of renewable energy—and revenue.

Last year the Sierra Club gave Duke an F on its climate commitments, far lower than any other investor-owned utility in the ...