Current methods for life cycle analyses of low-carbon transportation fuels in the United States / Committee on Current Methods for Life Cycle Analyses of Low-Carbon Transportation Fuels in the United States ; Board on Environmental Studies and Toxicology ; Board on Agriculture and Natural Resources ; Division on Earth and Life Studies ; Board on Energy and Environmental Systems ; Division on Engineering and Physical Sciences.

  • Washington, DC : The National Academies Press, [2022]
  • ©2022
xvi, 220 pages : color illustrations, color maps ; 28 cm.


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Summary note
"Transportation is the largest source of greenhouse gas emissions in the United States, with petroleum accounting for 90 percent of transportation fuels. Policymakers encounter a range of questions as they consider low-carbon fuel standards to reduce emissions, including total emissions released from production to use of a fuel or the potential consequences of a policy. Life-cycle assessment is an essential tool for addressing these questions. This report provides researchers and practitioners with a toolkit for applying life-cycle assessment to estimate greenhouse gas emissions, including identification of the best approach to use for a stated policy goal, how to reduce uncertainty and variability through verification and certification, and the core assumptions that can be applied to various fuel types. Policymakers should still use a tailored approach for each fuel type, given that petroleum-based ground, air, and marine transportation fuels necessitate different considerations than alternative fuels including biofuels, hydrogen, and electricity. Ultimately, life-cycle assessments should clearly document what assumptions and methods are used to ensure transparency."--Publisher's website.
Bibliographic references
Includes bibliographical references.
  • Front Matter
  • Summary - Part I: Background and Policy Context for Life-Cycle Analysis
  • 1. Introduction and Policy Context
  • 2. Fundamentals of Life-Cycle Assessment
  • 3. Life-Cycle Assessment in a Low-Carbon Fuel Standard Policy
  • Part II: General Considerations for Life-Cycle Analysis
  • 4. Key Considerations: Direct and Indirect Effects, Uncertainty, Variability, and Scale of Production
  • 5. Verification
  • 6. Specific Methodological Issues Relevant to a Low-Carbon Fuel Standard
  • Part III: Specific Fuel Issues for Life-Cycle Analysis
  • 7. Fossil and Gaseous Fuels for Road Transportation
  • 8. Aviation and Maritime Fuels
  • 9. Biofuels
  • 10. Electricity as a Vehicle Fuel
  • Appendix A: Conclusions and Recommendations
  • Appendix B: Committee Members' Biographical Sketches
  • Appendix C: Open Session Agendas.
  • 9780309273930 ((paperback))
  • 0309273935 ((paperback))
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