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Greenhouse Gases, Climate Change, and Energy <br />a~ <br />percent of total U,S human-made greenhouse gas emissions (Figure 3). The connection between energy <br />use and carbon dioxide emissions is explored in the box on the reverse side (Figure 4) <br />Figure 3, U.S. Anthropogenic Greenhouse Gas Emissions by Gas, 2001 <br />(Million Metric Tons of Carbon Equivalent) <br />Carbon Dioxide from <br />Fossil Fuel Combustion <br />1,547..0 (82%} ~,,, <br />"`"""`°'"" Other Carbon Dioxide <br />.--"' 31.7 (2%} <br />Source: Energy Inrcrtnafion Administration., Emissions of Greenhouse Gases <br />in fhe United States 2007 {tM1'ashington. OC. Z442 <br />Figure 4. U,S. Primary Energy Consumption and Carbon Dioxide Emissions, 2001 <br />http://www.eia.doe.gov/oiaf71605/ggccebro/chapterl .html 8/25/2005 <br />HFCs, PFCs, and SF <br />31.4 (2°!°} <br />