One vital element of science is the ability to draw conclusions from evidence and make predictions from that evidence.
Now you people continue to claim that the warming is not even happening, when the totality of evidence shows that the atmosphere and oceans are all warming. So you have not even gotten past the evidence part of it.
For those few that have gotten that far, they seem unable to accept the straight up physics of GHGs. As if Fourier and Tyndal would have lied in the 1800's for the benefit of 'alarmist' scientists in the 21st century.
Hansen, in his testimony before Congress in 1988 made a number of predictions for the year 2000. They were pretty much spot on. However, his predictions, and those of others, past that point, have been seriously in error. In precisely the wrong direction. The predictions were far too conservative.
By what we are seeing right now, as addressed by the Copenhagen Diagnosis, the predictions made by the IPCC in 2007 are much too conservative. The Artic Ice melt is already off the chart in the wrong direction, and the sea rise is at the very upper edge of their probability cone.
We just experianced the warmest decade in the last 180 years. But the next decade will be warmer yet. And the decade after that, even warmer.
So, you state I play at science. Show your science that states that the people that have written the articles in Nature, Science, and other sources that I have posted are wrong. Show that the people that comprise the Scientific Societies, the National Academies of Science, and all the major Universities don't know what they are talking about.
That is the challenge for you. To refute the real scientific evidence presented, not just engage in silly yap-yap.