My other point about oil is, you may not know this but there is oil in Alaska believed to be bigger than the Middle East. And is worth about 1000 years. I do believe we should use it even up to its last drop, but preferably we invent new technologies before that happens, my point is there is no point in stopping the use of oil just because "one day" it will run out. Oil allows us to run industry to invent new technologies. Think of oil and coal as a stepping stone to a better future with better technologies not as a evil causing climate change because its simply not true