Sadly, it seems you may be correct. It is a terrible error of course that could cost us billions of unnecessary expense for no gain.. If the science isn't there the right thing to do is to admit it and not do anything until the science is there.. But it is much worse than that. The science in this case is telling us we are wrong. Anthropomorphic CO2 is having a, so far, undetectable affect on temperature. (I trust the satellite data as being self-consistent, but still subject to systematic error.. I have no faith in temperature data obtained by direct measurement prior to the mid 1990s. There were simply not enough reliable monitoring stations, leaving millions of square miles of the Earths surface unmonitored. Naturally the proxy temperature readings (tree rings,etc.) are subject to large systematic error -- very large, ridiculously large!