– It is plausible that CO2 has some influence, so you have to look at the data, says atmospheric physicist S. Fred Singer, Professor Emeritus of environmental science at the University of Virginia. Our conclusion is that the human cause is most of the climate change has been natural. The data do not support the hypothesis of human caused global warming.

Professor Singer runs through a wide range of topics in this interview, at a climate conference hosted by the Norwegian Progress Party in December 17th, 2009. It’s about 30 minutes.