Because the data they analise refutes said theory. Pure and simple.
It has been said here that any scientist that refutes the consensus is in the employ of the evil oil company. Remember, such claims force you to not examine the science. How lame, and if you believe and base your arguments on such ad hominem attacks, your views and support of them are even lamer.
It is not scientific. Neither are the computer models that this scare is based on. For starters, look up and learn what the scientific method is. Learn the scientific method. Do the scientists you question use the scientific method? Yes or no. Do they share their data and methods? No? Then they are not scientists.
The IPCC and it's seminal summary for policy idiots is becoming a huge target, having been found to have been prepapared by incompetent political hacks and ignoring much of the science
Remember, the IPCC climate models ignore the Sun and clouds.
Based on these one dimensional computer models, they try to legislate a change in one molecule out of 10,000 in our atmosphere, they tell us this change in one out of 10,000 will cost us trillions and we have to give up our SUV's and incandecent lights. The results of all this? A decrease of a fraction of one degreee.
Please know that we can't even measure this! If something is unmeasureable, then how can it send us to some temperature tipping point?
My name is EJ
I am an engineer, trained in building on the earth, climate and geology. I got a boat load of 'climate' science, and I aint any good at ad hominems.