Some studies have shown that natural gas could, in fact, be worse for the climate than coal.

Climate scientists have long pointed to the Southwest as one of the places in the U.S. that is most vulnerable to global warming impacts, especially drought. And if there's one thing that even climate denialists don't dispute, dry things burn.

In reality, studies show that investments to spur renewable energy and boost energy efficiency generate far more jobs than oil and coal.

If you think Wall Street firms have it good, you haven't looked closely at Big Oil.

For better or worse, the bulk of coal industry jobs are in Appalachia - and when that coal is gone, so are the jobs.

Some studies have shown that natural gas could, in fact, be worse for the climate than coal.

Ethanol doesn't burn cleaner than gasoline, nor is it cheaper.