Bill Gates is a relative newcomer to the fight against global warming, but he's already shifting the debate over climate change.

So if you want to know how Exxon Mobil can make $10 billion profit in 90 days, just look around. The whole world was built for them.

Climate change is a global issue - from the point of view of the Earth's climate, a molecule of CO2 emitted in Bejing is the same as a molecule emitted in Sydney.

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

Americans don't pay much attention to environmental issues, because they aren't sexy. I mean, cleaning up coal plants and reining in outlaw frackers is hugely important work, but it doesn't get anybody's pulse racing.

It may be too late for West Virginia to save itself from the ravages of Big Coal. But it's not too late for America.

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.