161 1 Renewable Energy and Climate Change Coordinating Lead Authors: William Moomaw (USA), Francis Yamba (Zambia) Lead Authors: Masayuki Kamimoto (Japan), Lourdes Maurice (USA), John Nyboer (Canada), Kevin Urama (Kenya/Nigeria), Tony Weir (Fiji/Australia) Contributing Authors: Thomas Bruckner (Germany), Arnulf Jäger-Waldau (Italy/Germany), Volker Krey (Austria/Germany), Ralph Sims (New Zealand), Jan Steckel (Germany), Michael Sterner (Germany), Russell Stratton (USA), Aviel Verbruggen (Belgium), Ryan Wiser (USA) Review Editors: Jiahua Pan (China) and Jean-Pascal van Ypersele (Belgium) This chapter should be cited as: Moomaw, W., F. Yamba, M. Kamimoto, L. Maurice, J. Nyboer, K. Urama, T. Weir, 2011: Introduction. In IPCC Special Report on Renewable Energy Sources and Climate Change Mitigation [O. Edenhofer, R. Pichs-Madruga, Y. Sokona, K. Seyboth, P. Matschoss, S. Kadner, T. Zwickel, P. Eickemeier, G. Hansen, S. Schlömer, C.von Stechow (eds)], Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.