By emphasizing scientific uncertainty above other values, political appointees can block any regulatory action they want to.

Colorado held its first greenhouse gas credit auction but details on which companies bought their way out of emissions ...

New data on coal ash ponds in the U.S. has shed light on the extent of contamination at one of the Tennessee Valley Authority’s power plants in north Alabama. Widows Creek Fossil Plant, in the ...

As supervisor, Vargas was sometimes at odds with environmentalists and labor unions. Now those core Democratic constituencies ...