It's interesting to consider an alternative universe where Gore won that election and there was a win-win scenario: no invasion of Iraq and no extra publicity for global warming alarmists due to An Inconvenient Truth never being made.

It's also quite possible however that Gore would have jumped on the bandwagon even if he'd been elected in which case he might have done far more damage than Bush did by enacting some kind of cap and trade legislation.

Despite the many and varied catastrophic policy choices of the Bush administration it's still far from obvious that Gore would have been a better choice.