Embodied Environmental Emissions in U.S. International Trade, 1997-2004

Significant recent attention has been given to quantifying the environmental impacts of international trade. However, the United States, despite being the world's largest emitter of greenhouse gases and having large recent growth in international trade, has seen little analysis. This work uses a multi-country input-output model of the U.S. and its seven largest trading partners (Canada, China, Mexico, Japan, Germany, the UK, and Korea) to analyze the environmental effects of changes to U.S. trade structure and volume from 1997 to 2004. It is shown that increased import volume and shifting trade patterns during this time period led to a large increase in the U.S.' embodied emissions in trade (EET) for CO2, SO2, and NOx. Methodological uncertainties, especially related to uncertainties of international currency conversion, lead to large differences in estimation of the total EET, but we estimate that the overall embodied CO2 in U.S. imports has grown from between 0.5 and 0.8 Gt of CO2 in 1997 to between 0.8 and 1.8 Gt of CO2 in 2004, representing between 9-14% and 13-30% of U.S. (2-4% to 3-7% of global) CO2 emissions in 1997 and 2004, respectively. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0013936X
• Authors:
  • WEBER, C L
  • MATTHEWS, H S
• Publication Date: 2007-7-15

Language

• English

Media Info

• Pagination: 4875-4881
• Serial:
  • Environmental Science & Technology
  • Volume: 41
  • Issue Number: 14
  • Publisher: American Chemical Society
  • ISSN: 0013-936X
  • EISSN: 1520-5851
  • Serial URL: http://pubs.acs.org/journal/esthag

Subject/Index Terms

• TRT Terms: Carbon dioxide; Environment; Forecasting; International; Mathematical analysis; Pollutants
• Geographic Terms: United States
• ITRD Terms: 6471: Analysis (math); 7393: Carbon dioxide; 2442: Emission; 2455: Environment; 132: Forecast; 9034: International; 8122: USA
• Subject Areas: Energy; Environment; I15: Environment;

Filing Info

• Accession Number: 01076225
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 18 2007 10:15AM