A bill to strengthen the Montana Clean Indoor Air Act by including e-cigarettes and vape pens was signed into law earlier this month by Republican Gov. Greg Gianforte. Sen. Willis Curdy, D-Missoula, ...

Duke’s experience reflects a fundamental problem with the U.S. clean coal incentive program, a Reuters examination has found. Refined coal shows few signs of reducing NOx emissions as lawmakers ...

Congress should enact a clean-electricity standard that forces utilities to pare greenhouse gas emissions, but if lawmakers fail to deliver, the administration is prepared to act on its own, President ...