The 97%

How many times have you glibly been told that 97% of scientists agree that man made CO2 is responsible for global warming and climate change? President Obama tweeted it not so long ago, Sen. Kerry used that statistic and so did the Pope. I wonder if any of the three of them realized where that statistic comes from and just how meaningless that really is? There are two sources for the 97% and neither of them are very compelling. One was a two question survey sent to over 10,000 Earth Scientist asking two set up questions. The first asked if temperatures had risen in the last 100 years and the second asked if man had an impact on that temperature rise. Now only about 3500 surveys were completed and of

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