FIGURE 1.2 Energy consumption in the United States in 2007 by fuel source, in quads (bars) and as percentages (pie chart).
Source: Energy Information Administration, 2008b.
The National Academies of Sciences, Engineering, and Medicine 500 Fifth St. N.W. | Washington, D.C. 20001
"1 Context and Challenges."
America's Energy Future: Technology and Transformation.
Washington, DC: The National Academies Press, 2009.
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