Coal is going to be the predominantly competing fuel, and this raises the issue of how much gas is going to get used in China.

Natural gas is the one fuel that we have that's affordable, it's scaleable, it can replace coal over time, it can replace imported oil, can create American jobs.

Wait a minute. What did you just say? You're predicting $4-a-gallon gas? ... That's interesting. I hadn't heard that.

It is predominantly of our own doing.

Coal isn't going away. Neither is natural gas. But we can become less dependent on them.

Gas is the best answer I can give you. Coal was replaced by gas in the mid 1960s, and at the time it was cheaper and easier. You didn't have to put coal up on the fire every day.