Milton Friedman’s advice about climate models
Friedman’s emphasis on validated predictions, something potentially of great power in the public policy debate — but which climate scientists have largely ignored (preferring hindcasts and appeals to authority). This can be done. Climate scientists can test the models used in the past IPCC Assessment Reports by running them with current data (not vs. scenarios, as originally done).
http://fabiusmaximus.com/2016/02/26/milton-friedman-advice-about-climate-models-94441/