I agree with everything you say up until the last line. There is enough hard evidence out there that much of the scientific community is starting to agree that mankind
is at least partly the cause of the
rapid global warming trend we've been experiencing over the last several decades. Yes, there are natural fluctuations, but if you study the science a little bit, I think it's difficult to deny that mankind is having an effect. Where there is still significant debate is to
what extent and what can or should be done about it.
Electric and hybrid cars are definitely a step in the right direction, but there is another issue that needs to be addressed, which is America's dependence on foreign energy. This is another hot issue that has nearly reached the boiling point on several occasions, particularly during the oil crisis in the 70's and the present war in Iraq. The problem with electric and hybrid technology is that they still can't compete with the gas powered vehicles they are intended to replace. Diesel engines use compression, which is about 30% more efficient that gasoline ignition engines, and get much better fuel economy. The diesel passenger cars on the U.S. market today are far better than their gasoline versions, IMO. The only reason U.S. passenger cars favor gasoline is because of marketing and politics (which drove the "cheap" gas we've been chugging all these years).
I believe the best interim solution is to go diesel, phasing out petroleum based energy and replacing it with renewable biofuels. An all electric car that can hold a candle to a diesel in the same price range does not yet exist and is probably many years away from being mass produced. I've put my money where my mouth is and bought a 2006 VW Jetta TDi as my daily driver, and ultimately I'd like to drop a diesel in the VX.
OK, I'm getting off my soap box now!!!