Atmospheric methane levels increased over geological formations in Northern Siberia following a heat wave in 2020, suggesting that permafrost thaw releases methane from reservoirs.
Image credit: Wikimedia Commons.
Contributed by Susan Solomon, December 16, 2008 (received for review November 12, 2008)
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- Received November 12, 2008
- Published in issue February 10, 2009.
- Published first January 28, 2009.
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- Previous version (January 28, 2009 - 13:50).
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© 2009 by The National Academy of Sciences of the USA Freely available online through the PNAS open access option.
Author Information
- aChemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO 80305;
- bInstitute of Biogeochemistry and Pollutant Dynamics and
- cInstitute for Atmospheric and Climate Science, ETH CH-8092, Zurich, Switzerland; and
- dInstitut Pierre Simon Laplace/Laboratoire des Sciences du Climat et de l'Environnement, Unité Mixte de Recherche 1572 Commissariat à l'Energie Atomique–Centre National de la Recherche Scientifique–Université Versailles Saint-Quentin, Commissariat a l'Energie Atomique-Saclay, l'Orme des Merisiers, 91191 Gif sur Yvette, France
Contributed by Susan Solomon, December 16, 2008 (received for review November 12, 2008)
Footnotes
- ↵1To whom correspondence should be addressed. E-mail: susan.solomon{at}noaa.gov
Author contributions: S.S., G.-K.P., R.K., and P.F. designed research; S.S., G.-K.P., and R.K. performed research; G.-K.P. and R.K. analyzed data; and S.S., G.-K.P., R.K., and P.F. wrote the paper.
The authors declare no conflict of interest.
This article contains supporting information online at www.pnas.org/cgi/content/full/0812721106/DCSupplemental.
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Irreversible climate change due to carbon dioxide emissions
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