There is no scientific evidence CO2 causes climate warming..

Ian Plimer, geologist and professor emeritus at the University of Adelaide: 'I have no opinions, but validated and repeatable facts.. NO one has EVER shown that human CO2 emissions cause climate warming.. If this could be proven, then it would have to be shown that 97% of natural emissions do not cause climate warming. We've known for 200 years thanks to chemistry that it's the exact opposite [from ice cores we know that] when we had global warming, 650 to 6000 years later we had an increase in CO2'.. We are dealing with a science fraud.