I'll be the first to admit that like most conservatives, I'm deeply skeptical of the idea that mankind is causing global warming. Is that because I take payoffs from the energy industry, don't like Al Gore, don't like science, or any of the other silly excuses global warming alarmists come up with to explain why people don't buy their theory?
It's because "the Earth-is-going-to-burn-us-alive" crowd cannot answer the most basic questions about the theory that they haughtily insist is so beyond reproach that there should be no more need for debate. In fact, the most ironic thing about the global warming argument is that Al Gore and Company have declared that it's settled, but they have to use scary stories about cities being flooded a hundred years from now and fake tales about polar bears drowning to sell it. If they're on such rock solid scientific ground, why doesn't the science speak for itself? Does anyone remember Sir Isaac Newton or Albert Einstein trying to get people to buy into their scientific theories by coming up with doomsday scenarios? No, of course not.
Despite that, like most conservatives, I'm open minded and could be convinced that mankind is responsible for causing global warming -- but with science, not scaremongering. If the proponents of the manmade global warming theory can come up with good answers to questions like these, you can expect everyone, including me, to accept their theory:
1) The earth has warmed and cooled numerous times in the past and many of those temperature swings have been much greater than anything we've experienced so far. So, since we human beings don't really understand why those temperature swings occurred, how can we be sure that the very mild warming we've seen so far hasn't been caused by normal changes in our climate?
2) If greenhouse gasses produced by mankind are behind the roughly one degree increase in temperature over the last century, then why did the global temperature go down from roughly 1940 to 1975 even though mankind's production of greenhouse gasses was skyrocketing during that same time period?
3) We can't accurately predict whether it's going to rain or not a week from now. We can't accurately predict what the weather will look like next year (Remember that in 2005, they were predicting we'd be hammered with non-stop hurricanes in 2006 because of global warming. It didn't happen). Since that's the case, how can we possibly have any confidence in predictions of what the weather will be like in 50-100 years?