The natural environment is not particularly hospitable to human life ... the key to having a good environment is improving it through work... . Energy is fundamentally an environmental improver and if we classify it that way it makes sense out of a lot of these controversies... . It's our obligation and our right to make [our environment] as good for human beings as possible. With that view, it's very easy for people to understand precisely the reason it's good to alter it - because it doesn't naturally come the way we need it to be.