> Renewable, clean, carbon-neutral... these are just PR buzzwords. Renewable and carbon neutral really aren't. They have quite precise meaning. I'm not sure h

> Renewable, clean, carbon-neutral... these are just PR buzzwords. Renewable and carbon neutral really aren't. They have quite precise meaning. I'm not sure how you can say that oil (assuming you don't mean vegetable oil) can be renewable or carbon neutral - at least not over period shorter than geological epochs