But here is what makes me crazy: It is quite normal in science for scientists to have a theory, make a prediction based on this theory, and then go back and tweak the theory when data from real physical processes does not match the predictions. (climate-skeptic.com)
Climate models simulate real physical processes which operate in both cooling and warming climates. (sciencedaily.com)
Although such a statement may seem to have little to do with real physical processes, Hawking notes that the idea of a theory that governs the creators, and hence the creation, of the theory itself leads to logical problems. (discovermagazine.com)