 The Basque Centre for Climate Change, in an October 2009 review of integrated assessment models for climate change, discussed the DICE model in detail.A report from the Heritage Foundation, a conservative think tank in the United States, called the DICE model "flawed beyond use for policymaking" on account of its extreme sensitivity to initial assumptions.Similar criticisms, including criticisms of the specific choice of discount rates chosen in the model, have been made by others.