Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania

Zachary Robert Barkley, T. Lauvaux, Kenneth James Davis, A. Deng, A. Fried, P. Weibring, D. Richter, J. G. Walega, J. DiGangi, S. H. Ehrman, X. Ren, R. R. Dickerson

Research output: Contribution to journalArticle

Abstract

Production of coal and natural gas is responsible for one third of anthropogenic methane (CH4) emissions in the United States. Here we examine CH4 emissions from coal and natural gas production in southwestern Pennsylvania. Using a top-down methodology combining measurements of CH4 and ethane, we conclude that while Environmental Protection Agency inventories appear to report emissions from coal accurately, emissions from unconventional natural gas are underreported in the region by a factor of 5 (±3). However, production-scaled CH4 emissions from unconventional gas production in the Marcellus remain small compared to other basins due to its large production per well. After normalizing emissions by energy produced, total greenhouse gas emissions from Pennsylvania unconventional natural gas production produce half the carbon footprint compared to regionally produced coal, with carbon dioxide emissions from combustion being the dominant source of greenhouse gas emissions for both sources.

Original languageEnglish (US)
Pages (from-to)4531-4540
Number of pages10
JournalGeophysical Research Letters
Volume46
Issue number8
DOIs
StatePublished - Apr 28 2019

Fingerprint

natural gas
gas production
coal
estimating
methane
gases
greenhouses
greenhouse gas
carbon footprint
normalizing
ethane
footprints
carbon dioxide
combustion
methodology
carbon

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

Barkley, Zachary Robert ; Lauvaux, T. ; Davis, Kenneth James ; Deng, A. ; Fried, A. ; Weibring, P. ; Richter, D. ; Walega, J. G. ; DiGangi, J. ; Ehrman, S. H. ; Ren, X. ; Dickerson, R. R. / Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania. In: Geophysical Research Letters. 2019 ; Vol. 46, No. 8. pp. 4531-4540.
@article{3e9301f4408b4e2083ed6a8f2110befc,
title = "Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania",
abstract = "Production of coal and natural gas is responsible for one third of anthropogenic methane (CH4) emissions in the United States. Here we examine CH4 emissions from coal and natural gas production in southwestern Pennsylvania. Using a top-down methodology combining measurements of CH4 and ethane, we conclude that while Environmental Protection Agency inventories appear to report emissions from coal accurately, emissions from unconventional natural gas are underreported in the region by a factor of 5 (±3). However, production-scaled CH4 emissions from unconventional gas production in the Marcellus remain small compared to other basins due to its large production per well. After normalizing emissions by energy produced, total greenhouse gas emissions from Pennsylvania unconventional natural gas production produce half the carbon footprint compared to regionally produced coal, with carbon dioxide emissions from combustion being the dominant source of greenhouse gas emissions for both sources.",
author = "Barkley, {Zachary Robert} and T. Lauvaux and Davis, {Kenneth James} and A. Deng and A. Fried and P. Weibring and D. Richter and Walega, {J. G.} and J. DiGangi and Ehrman, {S. H.} and X. Ren and Dickerson, {R. R.}",
year = "2019",
month = "4",
day = "28",
doi = "10.1029/2019GL082131",
language = "English (US)",
volume = "46",
pages = "4531--4540",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "8",

}

Barkley, ZR, Lauvaux, T, Davis, KJ, Deng, A, Fried, A, Weibring, P, Richter, D, Walega, JG, DiGangi, J, Ehrman, SH, Ren, X & Dickerson, RR 2019, 'Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania', Geophysical Research Letters, vol. 46, no. 8, pp. 4531-4540. https://doi.org/10.1029/2019GL082131

Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania. / Barkley, Zachary Robert; Lauvaux, T.; Davis, Kenneth James; Deng, A.; Fried, A.; Weibring, P.; Richter, D.; Walega, J. G.; DiGangi, J.; Ehrman, S. H.; Ren, X.; Dickerson, R. R.

In: Geophysical Research Letters, Vol. 46, No. 8, 28.04.2019, p. 4531-4540.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Estimating Methane Emissions From Underground Coal and Natural Gas Production in Southwestern Pennsylvania

AU - Barkley, Zachary Robert

AU - Lauvaux, T.

AU - Davis, Kenneth James

AU - Deng, A.

AU - Fried, A.

AU - Weibring, P.

AU - Richter, D.

AU - Walega, J. G.

AU - DiGangi, J.

AU - Ehrman, S. H.

AU - Ren, X.

AU - Dickerson, R. R.

PY - 2019/4/28

Y1 - 2019/4/28

N2 - Production of coal and natural gas is responsible for one third of anthropogenic methane (CH4) emissions in the United States. Here we examine CH4 emissions from coal and natural gas production in southwestern Pennsylvania. Using a top-down methodology combining measurements of CH4 and ethane, we conclude that while Environmental Protection Agency inventories appear to report emissions from coal accurately, emissions from unconventional natural gas are underreported in the region by a factor of 5 (±3). However, production-scaled CH4 emissions from unconventional gas production in the Marcellus remain small compared to other basins due to its large production per well. After normalizing emissions by energy produced, total greenhouse gas emissions from Pennsylvania unconventional natural gas production produce half the carbon footprint compared to regionally produced coal, with carbon dioxide emissions from combustion being the dominant source of greenhouse gas emissions for both sources.

AB - Production of coal and natural gas is responsible for one third of anthropogenic methane (CH4) emissions in the United States. Here we examine CH4 emissions from coal and natural gas production in southwestern Pennsylvania. Using a top-down methodology combining measurements of CH4 and ethane, we conclude that while Environmental Protection Agency inventories appear to report emissions from coal accurately, emissions from unconventional natural gas are underreported in the region by a factor of 5 (±3). However, production-scaled CH4 emissions from unconventional gas production in the Marcellus remain small compared to other basins due to its large production per well. After normalizing emissions by energy produced, total greenhouse gas emissions from Pennsylvania unconventional natural gas production produce half the carbon footprint compared to regionally produced coal, with carbon dioxide emissions from combustion being the dominant source of greenhouse gas emissions for both sources.

UR - http://www.scopus.com/inward/record.url?scp=85065134946&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065134946&partnerID=8YFLogxK

U2 - 10.1029/2019GL082131

DO - 10.1029/2019GL082131

M3 - Article

AN - SCOPUS:85065134946

VL - 46

SP - 4531

EP - 4540

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 8

ER -