The relative contribution of transportation to supply chain greenhouse gas emissions: A case study of American wheat |
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| Authors: | Brendan O&#x;Donnell Anne Goodchild Joyce Cooper Toshi Ozawa |
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| Institution: | aDepartment of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195, USA;bDepartment of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA;cResearch Center for Life Cycle Assessment, National Institute of Advanced Industrial Science and Technology (AIST), 16-1, Onogawa, Tsukuba, Ibaraki 305-8569, Japan |
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| Abstract: | This life cycle assessment case study puts the supply chain contribution of transportation to greenhouse gas emissions in context with other contributors using American wheat grain as a representative product. Multiple locations, species and routes to market are investigated. Transportation contributes 39–56% of the supply chain emissions, whereas there is a 101% intra-species and 62% inter-species variation in greenhouse gas emissions from production, demonstrating that transportation is both of smaller magnitude, and less sensitive than other factors, in particular, field sequestration. |
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| Keywords: | Greenhouse gas emissions Agricultural transport Life cycle assessment |
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