Data from: Implied climate warming contributions of enteric methane emissions are dependent on the estimate source and accounting methodology
This dataset was used in the generation of the manuscript titled: Implied climate warming contributions of enteric methane emissions are dependent on the estimate source and accounting methodology (DOI: 10.15232/aas.2022-02344). The objectives of this manuscript were to (1) demonstrate the differences in enteric methane emission estimates between 2 reporting entities (FAO and EPA) and to (2) demonstrate how the implied contribution to climate warming caused by enteric methane is dependent on accounting methodologies. The accounting methodologies explored were the conventional global warming potential (GWP) based on a 100-year time horizon (GWP100) or the newer GWP. The GWP methodology was developed because GWP100 fails to capture the short atmospheric lifespan of CH4, which is only 12-years (EPA, 2021a). The equations to calculate GWP100 (Equation 1; IPCC, 2013) and GWP* (Equation 2; Smith et al., 2021) are:
CH4, Mt CO2 equivalence = 28 × CH4(t) [Equation 1]; CH4, Mt CO2-we = (4.53 × CH4(t) – 4.25 × CH4(t–20)) × 28 [Equation 2].
Where CH4(t) is the CH4 emitted in million metric tons (Mt) at year t and CH4(t-20) is the amount of CH4 emitted in Mt 20-years prior. Data was obtained from publicly available sources — the USDA-NASS biannual reports on cow and calf inventory in January and June (USDA-NASS, 2022), the EPA website (EPA, 2021b), and FAO from the FAOSTAT website (FAO, 2022). The data provided herein is an excel spreadsheet (.xlsx format) and contains 5 different sheets. Sheet titled "Descriptions" describe what each column names contain for the data-containing sheets.
References: EPA (US Environmental Protection Agency). 2021a. Inventory of US Greenhouse Gas Emissions and Sinks 1990–2019. US Environmental Protection Agency.
EPA (US Environmental Protection Agency). 2021b. Inventory of US Greenhouse Gas Emissions and Sinks: 1990–2019. Accessed May 18, 2022. https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks-1990-2019.
FAO (Food and Agriculture Organization). 2022. FAOSTAT Emissions Totals. Accessed: May 18, 2022. https://www.fao.org/faostat/en/#data/GT.
IPCC (Intergovernmental Panel on Climate Change). 2013. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. T. F. Stocker, D. Qin, G. K. Plattner, M. Tignor, S. K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex, and P. M. Midgley, ed. Cambridge University Press.
NASS (National Agricultural Statistics Service). 2022. Cattle NASS. Accessed May 18, 2022. https://usda.library.cornell.edu/concern/publications/h702q636h?locale=en.
Smith, M. A., M. Cain, and M. R. Allen. 2021. Further improvement of warming-equivalent emissions calculation. npj Clim. Atmos. Sci. 4:1–3. https://doi.org/10.1038/s41612-021-00169-8.
Resources in this dataset:
Resource Title: Data from: Implied climate warming contributions of enteric methane emissions are dependent on the estimate source and accounting methodology.
File Name: Enteric_CH4_emission_estimates_scenarios.xlsx
Funding
USDA-ARS: 3090-31630-006-000-D
History
Data contact name
Beck, MatthewData contact email
Matthew.R.Beck@usda.govPublisher
Ag Data CommonsIntended use
This data may be used to further explore the relationship between EPA and FAO estimated enteric methane emissions and how implied climate warming changes when using GWP100 or GWP* accounting methodologies.Use limitations
Data was accessed on 5/18/2022. Both the FAO and EPA update their data yearly, so that the data available on their websites may not match what is presented here.Temporal Extent Start Date
1961-01-01Temporal Extent End Date
2019-12-31Theme
- Not specified
Geographic Coverage
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location - description
United States of AmericaISO Topic Category
- environment
- farming
National Agricultural Library Thesaurus terms
global warming; methane production; methane; global warming potential; equations; carbon dioxide; beef production; emissions; greenhouse gasesOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
ARS National Program Number
- 212
Pending citation
- No
Public Access Level
- Public