CleanMPG- an energy conservation community

I read an article on the CNN.com technology blog about Wayne Gerdes, a "hypermiler" who tries to squeeze every mile he can from every drop of gasoline. The article linked to the CleanMPG website which looks very interesting.

I see some possibilities for math problems involving what Gerdes calls "MPGPP" or miles per gallon per person, not to mention some very real discussions about conserving energy when we drive, and around the house.

The price of gas is only going to go up. We can have some very important lessons in the classroom about personal finance, and, on a larger scale, the effect the price of gas is having on the world's economy.