Bloomberg's $50 million is not going to revolutionize the electric power industry. But his willingness to fight is already inspiring others to see Big Coal differently.

Nowhere has the political power of coal been more obvious than in presidential campaigns.

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

In the United States, we do a pretty good job of protecting iconic landscapes and postcard views, but the ocean gets no respect.

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.

One of the big questions in the climate change debate: Are humans any smarter than frogs in a pot? If you put a frog in a pot and slowly turn up the heat, it won't jump out. Instead, it will enjoy the nice warm bath until it is cooked to death. We humans seem to be doing pretty much the same thing.

When it comes to global warming, coal is the gorilla in the room.