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finding 27.3 : economy-emitted-decreasing-carbon-dioxide
Over recent decades, the U.S. economy has emitted a decreasing amount of carbon dioxide per dollar of gross domestic product. Between 2008 and 2012, there was also a decline in the total amount of carbon dioxide emitted annually from energy use in the United States as a result of a variety of factors, including changes in the economy, the development of new energy production technologies, and various government policies.
This finding is from chapter 27 of Climate Change Impacts in the United States: The Third National Climate Assessment.
Process for developing key messages: Evaluation of literature by Coordinating Lead Authors
Description of evidence base: Trends in greenhouse gas emissions intensity are analyzed and published by governmental reporting agencies.13e4d075-f7bd-4fd4-a41f-a1f0cd93356d 1f3aba1c-1817-4679-b32e-930d0c816567 8e71f863-8c83-4786-900c-ad8c8c252b30 Published, peer-reviewed literature cited in Section 2 of the Mitigation Chapter supports the conclusions about why these trends have occurred.b49e2223-b2b7-4aa6-ae07-53dfb62cbec9 edf72c60-e5e1-4e35-86af-dd543322be7f
New information and remaining uncertainties: Economic and technological forecasts are highly uncertain.
Assessment of confidence based on evidence: High. The statement is a summary restatement of published analyses by government agencies and interpretation from the reviewed literature.
- Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990 – 2011 (13e4d075)
- Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer: 8th edition (1f3aba1c)
- U.S. Agriculture and Forestry Greenhouse Gas Inventory: 1990-2008. Technical Bulletin No. 1930. (8e71f863)
- An Empirical Analysis of Energy Intensity and Its Determinants at the State Level (b49e2223)
- Explaining the declining energy intensity of the U.S. economy (edf72c60)
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