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    caption: 'This graph depicts the changes in carbon dioxide (CO<sub>2</sub>) emissions over time as a function of five driving forces: 1) the amount of CO<sub>2</sub> produced per unit of energy (CO<sub>2</sub> intensity); 2) the amount of energy used per unit of gross domestic product (energy intensity); 3) structural changes in the economy; 4) per capita income; and 5) population. Although CO<sub>2</sub> intensity and especially energy intensity have decreased significantly and the structure of the U.S. economy has changed, total CO<sub>2</sub> emissions have continued to rise as a result of the growth in both population and per capita income. (Baldwin and Sue Wing, 2013<tbib>4ae74fe5-51c5-4235-b9ab-3648489a2d9c</tbib>).'
    chapter_identifier: mitigation
    create_dt: 2013-10-21T14:15:00
    identifier: drivers-of-us-fossil-emissions
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    title: Drivers of U.S. Fossil Emissions
    url: http://nca2014.globalchange.gov/report/response-strategies/mitigation/graphics/drivers-us-fossil-emissions
    usage_limits: Copyright protected. Obtain permission from the original figure source.
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time_end: 2008-12-31T23:59:59
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title: Drivers of U.S. Fossil Emissions
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