Linked from JunkScience.com. This article is one of the best in explaining the one simple argument that proves that the AGW models from the IPCC are based on false assumptions. Basically it debunks the positive feedback mechanism attributed to water vapor in the AGW models, by showing that the atmospheric hot spot over the tropics, required to provide the positive feedback is not occuring. What is particularly impressive about his articlle is that it presents the argument with an example of the physics that any layman can understand. Read and enjoy.