Why is it that I find that 99% of skepticism on global warming turns out to be arrogant and condescending?

If you are open to facts about this topic you should consider the fact that 90% of the volcanos are under the ocean and not yet discovered. They heat the ocean more than the sun does but don't look for anyone to agree with this. It takes a long for the truth in emerge from the battles of the day. All of the details of GW are from models and whayever data is involved is used to suit the model. But, it really doesn't matter one way or the other the real issue is ending manmade polution.and CO2 in the atmosphere is a part of the overall polution problem. What I don't get is why no one wants to remove the excess CO2 from the atmosphere or do anything about the polution generated in landfills.