See "A Vast Machine: Computer Models, Climate Data, and the Politics of Global Warming" Written by a prof at UMich School of Information, it discusses how we k

See "A Vast Machine: Computer Models, Climate Data, and the Politics of Global Warming" Written by a prof at UMich School of Information, it discusses how we know what we know about climate change. http://www.amazon.com/Vast-Machine-Computer-Politics-Infrastructures/product-reviews/0262013924/ref=dp_top_cm_cr_acr_txt?ie=UTF8&showViewpoints=1 http://www.amazon.com/Vast-Machine-Computer-Politics-Infrast...