Comment Re:Global Warming Philosophy (Score 1) 1747
Start recording temperatures in 1850, and in 1950 look at the trend. Do the same from 1950 onwards. Notice that CO2 increases IR absorption and is increasing in the atmosphere. Create a GCM and run it with and without the anthropogenic forcing. Notice which one fits the data. Download the program and the data from http://edgcm.columbia.edu/ and run it at home if you want to check. Oh, don't believe that data? Use this, or this new one. Want to check the GCM? run against paloclimate proxies, or write from first principles and do it on paper like Arrhenius did.