The 135-page report by the Intergovernmental Panel on Climate Change, especially Chapter 11 on Policy, Financing and Implementation, makes it clear that the overwhelming weight of academic studies conclude that feed-in tariffs — or fixed-price mechanisms — perform better at delivering renewable energy quickly and equitably than quota systems, such as Renewable Portfolio Standards in the U.S. or the Renewable Obligation in Britain. This is not the unsurprising conclusion from a surprising source: the IPCC's Working Group III on Renewables.