1. Climate Change 2007: the Physical Science Basis, Summary for Policymakers, Fourth Assessment Report of the Intergovernmental Panel on Climate Change; Intergovernmental Panel on Climate Change: Geneva, Switzerland, 2007; available at http://www.ipcc.ch/spm2feb07.pdf (accessed 2008).
2. Climate Analysis Indicators Tool (CAIT) Online Database Version 3.0.; World Resources Institute: Washington, DC, 2006; available at http://cait.wri.org (accessed 2008).
3. The Future of Coal: an Interdisciplinary MIT Study; Massachusetts Institute of Technology: Cambridge, MA, 2007.
4. Wigley, T.M.L. MAGICC/SCENGEN 5.3 User Manual; MAGICC (Model for the Assessment of Greenhouse Gas Induced Climate Change); available at http://www.cgd.ucar.edu/cas/wigley/magicc/UserMan5.3.v2.pdf (accessed 2008).
5. Energy Technology Perspectives 2006; International Energy Agency; Organization for Economic Cooperation and Development: Paris, France, 2006.