I am admittedly no scientist, but I see a number of things that make me skeptical of global warming. First, the temperature has risen one degree in 100 years. That’s really not that much and it would seem that there could be a number of factors that caused this rise. It is interesting to me that half of the rise in temperature occurred before 1950 which was before the significant increase in human influenced CO2 output. One would think that the increase would be greater in the last 50 years.
Second, a number of theories upon which the global warming theory is based have been challenged. First, the “hockey stick” graph has been shown inaccurate. Second, I read that the assumptions regarding the oceans’ temperatures were being reassessed. I read somewhere that now that scientific instruments can make temperature readings 24 hours a day, previous measurements may have to be disregarded. It seems that by using 24 hour measurements, it has been learned that ocean temperatures can fluctuate in a single spot by up to 15 degrees in a single day. I could not find that article, but that discovery may have spawned the news that the ocean temperatures have not been rising as expected:
It has always seemed strange to me that the sun could be so quickly disregarded as the source of temperature fluctuation. It is my understanding that we can’t really even measure how much heat the sun puts on the Earth when factoring all of the output of the sun in radiation, heat, etc is taken into account. I have included an article that details some of the uncertainty about how the sun works and the heat discharge:
There is evidence that the sun is responsible for the increase in temp, it appears that the Martian polar caps are melting at a higher rate than usual:
I guess that puts me in the minority. Point taken Doug on finding 400 scientists to say anything, you really crushed the legitimacy of the number effectively. That being said, I think the aforementioned anti-manmade global warming minority has more available evidence than the anti-evolutionary people. Further, our basis of skepticism does is not based on an article of faith such as the Bible.
My suspicion is that global warming has been cast in stark and overstated terms for largely political purposes. The Left, with cause, has accused the Bush Administration of fear mongering re: terrorism, but it seems the global warming side engages in some of the same tactics when talking about ocean floods and ice ages within the next 100 years. The danger here is that if the sky doesn’t fall and we don’t become cannibals in 30 years (ha ha, you global warming advocates are stuck with Ted Turner), the average person loses interest and confidence in the scientific community.
There are serious issues to be addressed, we should reduce pollution (whether global warming is real or not, reducing pollution has improved air quality in LA and we don’t have to wear surgical masks in our large cities unlike in Beijing). We need to create more efficient forms of energy. We need to address the reduction of natural habitats and species on land and sea.