It's Time for an Urbanization Science

Click to increase image sizeClick to decrease image size Notes 1. IEA, World Energy Outlook 2008 (Paris, OECD/IEA, 2008); UNFPA, State of the World Population: Unleashing the Potential of Urban Growth (New York, NY: United Nations Population Fund, 2007); and United Nations, National Accounts Main Aggregates Database (New York, NY: United Nations, Statistics Divison, 2011), available at http://unstats.un.org/unsd/snaama (accessed March 21, 2012). 2. See, for example, M. R. Montgomery, R. Stren, et al., Cities Transformed, Demographic Change in its Implications in the Developing World (Washington, DC: National Academies Press, 2003). 3. K. Seto, M. Fragkias, et al., A Meta-Analysis of Global Urban Land Expansion, PloS One 6, no. 8 (2011). 4. M. Batty, The Size, Scale, and Shape of Cities, Science 319 (2008): 769–771; L. Bettencourt and G. West, A Unified Theory of Urban Living, Nature 467 (2010): 912–913; N. Grimm, S. H. Faeth, et al., Global Change and the Ecology of Cities, Science 319, no. 5864 (2008): 756–760; and K. C. Seto, A. Reenberg, et al., Urban Land Teleconnections and Sustainability. Proceeding of the National Academy of Sciences of the United States of America 109, no. 18 (2012), available at www.pnas.org/cgi/doi/10.1073/pnas.1117622109 5. C. Rosenzweig, W. D. Solecki, et al., eds., Climate Change and Cities, First Assessment Report of the Urban Climate Change Research Network (Cambridge, UK: Cambridge University Press, 2011).