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US GHG Emissions Flow Chart
Click the figure to view at 100 percent.
Right-click the figure to copy or save a high-resolution version,
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PDF Version
Sources & Notes: Emissions data comes from the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2003, U.S. EPA (using the CRF
document). Allocations from “Electricity & Heat” and “Industry” to end uses
are WRI estimates based on energy use data from the International Energy Agency
(IEA, 2005). All data is for 2003. All calculations are based on CO2 equivalents,
using 100-year global warming potentials from the IPCC
(1996), based on total U.S. emissions of 6,978 MtCO2 equivalent. Emissions from fuels in
international bunkers are included under Transportation. Emissions from solvents are
included under Industrial Processes.
Emissions and sinks from land use change and forestry (LUCF), which account for a sink
of 821.6 MtCO2 equivalent, and flows less than 0.1 percent of total emissions are not shown
For detailed descriptions of sector and
end use/activity definitions, see Navigating the Numbers: Greenhouse Gas Data and
International Climate Policy (WRI, 2005).
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