Long-term decline of global atmospheric ethane concentrations and implications for methane

Isobel J. Simpson (), Mads P. Sulbaek Andersen, Simone Meinardi, Lori Bruhwiler, Nicola J. Blake, Detlev Helmig, F. Sherwood Rowland and Donald R. Blake
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Isobel J. Simpson: University of California—Irvine (UCI)
Mads P. Sulbaek Andersen: University of California—Irvine (UCI)
Simone Meinardi: University of California—Irvine (UCI)
Lori Bruhwiler: NOAA Earth System Research Laboratory (ESRL), 325 Broadway
Nicola J. Blake: University of California—Irvine (UCI)
Detlev Helmig: Institute of Arctic and Alpine Research (INSTAAR), University of Colorado
F. Sherwood Rowland: University of California—Irvine (UCI)
Donald R. Blake: University of California—Irvine (UCI)

Nature, 2012, vol. 488, issue 7412, 490-494

Abstract: The longest continuous record of global atmospheric ethane levels is presented, showing that global ethane emission rates decreased by 21 per cent from 1984 to 2010, probably owing to decreased venting and flaring of natural gas in oil fields; decreased venting and flaring also account for at least 30 to 70 per cent of the decrease in methane emissions over the same period.

Date: 2012
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DOI: 10.1038/nature11342

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