and even a better one yet - the hot water bottle effect - this one really lays it out.
http://www.freerepublic.com/focus/f-news/2046413/posts And yet another - this one is a nail in the coffin of Global Warming shillery http://www.freerepublic.com/focus/news/2318659/posts?page=1
The Atmosphere contains 380 ppm = 0.038% co2 Man contributes 14.4 ppm = 0.0014% Man contributes 3.7% of the total co2. Therefore if the co2 levels went from 300 ppm to 380 ppm since the year 1900 then nature was responsible for 96.3% of the increase. The real atmospheric warming substance is water vapor. The atmosphere contains about 2-3% water vapor. Compare that with 0.0014% of mans co2. That makes man significance 0.00056% Now there is something really insignificant.