Anyone that denies the scientific proof of global warming and prefers to think it is only a political opinion is simply crazy. If I offend you then sorry ... actually no I am not you are just showing your ignorance. Politicians on both side of the argument should be ignored cos they know nothing. Just take scientific opinion into account. The north and south poles are melting and the sea level is rising. That is a fact. If you don't acknowledge that then you are just plain wrong because you are ignoring scientific evidence.