Environmentalists have a very strange relationship with the price of oil. I asked around among friends, students, and online acquaintances and every one replied without question that high oil prices were a good thing if you care about the environment. Why? Well, high prices discourage consumption they said. Not only that, high prices enable alternative energy sources. Of course, both of these statements are correct, but if you look deeper into the economics of oil and gas, it is not so easy to say that you should pray for high oil prices if you care about the environment.