infrastructure (see Figure 4–1). Although they contain 65 percent of the population and create 76 percent of gross domestic product, they only produce 56 percent of carbon emissions. Dr. Brown noted that obtaining energy data at a county or zip code level is difficult. Some data are proprietary and can only be estimated.

FIGURE 4-1 Projections for energy efficiency gains in Georgia.

FIGURE 4-1 Projections for energy efficiency gains in Georgia.

Source: Brown, M.A., E. Gumerman, X. Sun, Y. Baek, J. Wang, R. Cortes, and D. Soumonni. 2010. Energy Efficiency in the South (Atlanta: Southeast Energy Efficiency Alliance), April 2010. [online.] Available: http://www.seealliance.org/programs/se-efficiency-study.php. [accessed April 9, 2011]

SUSTAINABILITY AS A POINT OF DIFFERENTIATION

K.C. Boyce, Deputy Executive Director, Membership and Regional Impact, ICLEI-Local Governments for Sustainability, discussed how progress toward sustainability might be measured in the region. He presented the STAR Community Index, which uses comparative analysis to provide a common way of measuring progress in sustainability—



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