IPCC (Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change)
Kornelis Blok (The Netherlands), Luis Geng (Peru), Danny Harvey (Canada), Siwei Lang (China), Geoffrey Levermore (UK), Anthony Mongameli Mehlwana (South Africa), Sevastian Mirasgedis (Greece), Aleksandra Novikova (Russia), Jacques Rilling (France), Hirosh
Buildings offer a large share of cost-effective opportunities for GHG mitigation among many sectors: achieving a lower carbon future will require very significant efforts to enhance programmes and policies for energy efficiency in buildings and low-carbon energy sources well beyond what is happening today. The report focuses on residential and commercial buildings. It acknowledges that the potential of leverage of policies is poorly understood and the potential emission reduction through non-tech options is too rarely assessed : they play a crucial role in dertermining energy use in buildings (and so GHG emissions). Today, the greatest challenge regards strategies for retrofitting existing buildings. Appropriate and successful policies will need to be enforced through integrated programmes in order to overcome market barriers.