Improving Characterization of Anthropogenic Methane Emissions in the United States
2018

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Understanding, quantifying, and tracking atmospheric methane and emissions is essential for addressing concerns and informing decisions that affect the climate, economy, and human health and safety. Atmospheric methane is a potent greenhouse gas (GHG) that contributes to global warming. While carbon dioxide is by far the dominant cause of the rise in global average temperatures, methane also plays a significant role because it absorbs more energy per unit mass than carbon dioxide does, giving it a disproportionately large effect on global radiative forcing. In addition to contributing to climate change, methane also affects human health as a precursor to ozone pollution in the lower atmosphere.

Improving Characterization of Anthropogenic Methane Emissions in the United States summarizes the current state of understanding of methane emissions sources and the measurement approaches and evaluates opportunities for methodological and inventory development improvements. This report will inform future research agendas of various U.S. agencies, including NOAA, the EPA, the DOE, NASA, the U.S. Department of Agriculture (USDA), and the National Science Foundation (NSF).

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Getting to Net-Zero Emissions by 2050

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250 pages · 7 x 10 · paperback
ISBN Paperback: 0-309-47050-1
ISBN Ebook: 0-309-47054-4
DOI: https://doi.org/10.17226/24987

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National Academies of Sciences, Engineering, and Medicine. 2018. Improving Characterization of Anthropogenic Methane Emissions in the United States. Washington, DC: The National Academies Press.

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Front Matter i-xvi
Summary 1-20
1 Introduction 21-36
2 Current Inventories of Methane Emissions 37-76
3 Methane Emission Measurement and Monitoring Methods 77-138
4 Addressing Uncertainties in Anthropogenic Methane Emissions 139-170
5 Presenting Methane Emission Data and Results 171-178
6 Meeting the Challenges of Characterizing Methane Emissions 179-184
References 185-204
Glossary 205-208
Appendix A: Acronyms and Abbreviations 209-212
Appendix B: Definition of U.S. Greenhouse Gas Inventory Categories 213-214
Appendix C: Other Anthropogenic Sources of Methane 215-218
Appendix D: U.S. Greenhouse Gas Inventory Development 219-222
Appendix E: Acknowledgment of Those Who Provided Input to the Committee 223-224
Appendix F: Common Units for Reporting Methane Concentrations and Emissions 225-226
Appendix G: Biographical Sketches of Committee Members 227-232
Appendix H: Disclosure of Conflict of Interest 233-234

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Improving Characterization of Anthropogenic Methane Emissions in the United States (2018)

Chapter: Appendix B: Definition of U.S. Greenhouse Gas Inventory Categories

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Improving Characterization of Anthropogenic Methane Emissions in the United States (2018)

Chapter: Appendix B: Definition of U.S. Greenhouse Gas Inventory Categories