1. Solomon, S. et al. (eds.) Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge University Press, Cambridge and New York, 2007);
http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-spm.pdf
2. Sovacool, B. Energy Policy 36, 2950–2963 (2008).
3. Mudd, G. M. & Diesendorf, M. Environ. Sci. Technol. 42, 2624–2630 (2008).