It seems to me that there's little we can actually do about global warning anyway. If the planet decides it's going to heat up a bit, who are we to try to stop it? I know we may have contributed to it in some ways, but with 'evidence' pointing every which way, depending on which journal you read, or which newspaper has got the latest scare story on a slow news day, it must be really hard for anyone to come up with a definitive answer as to what we should be doing, or not doing.