The toxic byproduct of burning coal has quietly become one of America's worst environmental justice problems.
The court put a temporary hold on the EPA climate initiative, and that could be a bad sign for how the justices will rule on the plan down the line.
The impact on the climate is equivalent to driving 7 million cars every day.
Welcome to East Porterville, also known as "ground zero" of the drought.
Over 30 percent of California's forest firefighters are prisoners.
Oil refineries are the second biggest water user of non-ag businesses in drought-parched California.
Everything you ever wanted to know about California's devastating drought but were too afraid to ask.
And other amazing facts from the Golden State's epic nut boom.
The two weeks of rain have helped, but it's not nearly enough.