is well known to all of us and is basically ilnrrevaet to the discussion. He repeats multiple times that the level of CO2 is rising as though it were an issue under debate. He repeats multipiple times that the temperature is rising as though that were an issue under debate. Of course all of the other forms of evidence that he offers, like shrinking sea ice, mean nothing in themselves except that the temperature is rising which is not being argued.The irrational conclusion that he draws is that CO2 is a forcing that raised temperatures in the past. And so if we are adding CO2, then we must be forcing temperature today. But there is no evidence that CO2 was a forcing factor in the past. All that we know is that the level of CO2 went up AFTER the temperature went up. That does not make CO2 a temperature forcing agent. It could very well be that temperature is a CO2 forcing agent. The temperature record is full of examples where CO2 was still rising when temperature completely ignored CO2, changed directions, and started down.Yes, lab experiments do show CO2 to be a greenhouse gas. But those lab experiments show us nothing about the feedback that results from having more CO2 in the atmosphere. The feedback numbers that the alarmists need to support their dooms day scenarios are supported only by models and those models are based upon assumptions that are simply false. For example, the assumption that the models adequately understand and cover all of the forcing factors for climate. Several papers have come out recently (Solomon\'s Svenmark\'s, Lindzen\'s, etc.) that show that we are not even close to understanding the drivers of climate, much less adequately modeling them.So please, Dr. Meier, don\'t waste our time with arguments about more CO2 and higher temperature. Or if you are going to fall back on that kind of simplicity, then explain why there has been no warming for the past 12 years while at the same time CO2 has been steadily rising and while no other factors of natural variation can be found to explain the suppression of the temperature rise that you would expect from that extra CO2.