Two posters here have recently claimed that "The Physical Science Basis", produced by Working Group I (WG-I) of the IPCC as part of their Assessment Report 5, contains NO empirical data. They claim that instead, it is filled entirely with the output of models. Do you agree or disagree? The document may be viewed at www.ipcc.ch. The full version is quite large, roughly 1800 pages as I recall. But a shorter and simpler version is available as the "Summary for Policy Makers".