Rush got behind NAFTA and that was passed. I think that Rush is crusading the Global Warming skeptic issue while the political arena sorts itself out.
“I wonder what the real reasons why all these people are coming around?”
I think we can thank the internet and forums like FreeRepublic.
Using the internet it is easy to get the global warming temperature data for ones self and run analysis on it. This is not hard to do. Anyone with some training and understanding of time series analysis can do it. Lot’s of people did this. Then these people posted what they found out on different forums.
I think the real reason these scientists came around is that they did not want to look stupid.
Of course, the ham handed deceitful manner Al Gore dealt with the facts in his movie was an embarassment that contributed to the appearance of stupidity factor.
So, basically, it came down to shining that famous “light of truth” on man-made global warming and then respectable scientists who wanted to keep their reputations knew what they had to do.
You don't have to have a PHD to smell bullsh*t.