Considerable contribution of the Montreal Protocol to declining greenhouse gas emissions from the United States

Hu, Lei; Montzka, Stephen A.; Lehman, Scott J.; Godwin, David S.; Miller, Benjamin R.; Andrews, Arlyn E.; Thoning, Kirk; Miller, John B.; Sweeney, Colm; Siso, Caroline; Elkins, James W.; Hall, Bradley D.; Mondeel, Debra J.; Nance, David; Nehrkorn, Thomas; Mountain, Marikate; Fischer, Marc L.; Biraud, Sébastien C.; Chen, Huilin; Tans, Pieter P.

doi:10.1002/2017GL074388

Title: Considerable contribution of the Montreal Protocol to declining greenhouse gas emissions from the United States

Journal Article · Wed Aug 16 00:00:00 EDT 2017 · Geophysical Research Letters

DOI:https://doi.org/10.1002/2017GL074388· OSTI ID:1476525

Hu, Lei ^[1];

^[2]; Lehman, Scott J. ^[3]; Godwin, David S. ^[4];

^[1];

^[2]; Thoning, Kirk ^[2];

^[2];

^[1]; Siso, Caroline ^[1]; Elkins, James W. ^[2]; Hall, Bradley D. ^[2]; Mondeel, Debra J. ^[1]; Nance, David ^[1];

^[5]; Mountain, Marikate ^[5];

^[6];

^[7];

^[8];

^[2]

Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences (CIRES); National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab., Global Monitoring Division
National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab., Global Monitoring Division
Univ. of Colorado, Boulder, CO (United States). Inst. of Arctic and Alpine Research
US Environmental Protection Agency (EPA),Washington, DC (United States). Stratospheric Protection Division, Office of Atmospheric Programs, Office of Air and Radiation
Atmospheric and Environmental Research, Lexington, MA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Technologies Area
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth and Environmental Sciences Area
Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences (CIRES); Univ. of Groningen (Netherlands). Centre for Isotope Research

Ozone depleting substances (ODSs) controlled by the Montreal Protocol are potent greenhouse gases (GHGs), as are their substitutes, the hydrofluorocarbons (HFCs). Here we provide for the first time a comprehensive estimate of U.S. emissions of ODSs and HFCs based on precise measurements in discrete air samples from across North America and in the remote atmosphere. Derived emissions show spatial and seasonal variations qualitatively consistent with known uses and largely confirm U.S. Environmental Protection Agency (EPA) national emissions inventories for most gases. The measurement-based results further indicate a substantial decline of ODS emissions from 2008 to 2014, equivalent to ~50% of the CO₂-equivalent decline in combined emissions of CO₂ and all other long-lived GHGs inventoried by the EPA for the same period. Total estimated CO₂-equivalent emissions of HFCs were comparable to the sum of ODS emissions in 2014, but can be expected to decline in the future in response to recent policy measures.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1476525

Alternate ID(s):: OSTI ID: 1374927

Journal Information:: Geophysical Research Letters, Vol. 44, Issue 15; ISSN 0094-8276

Publisher:: American Geophysical UnionCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 26 works

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