The interaction of climate change and methane hydrates
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Reviews of Geophysics 55 (2017): 126–168, doi:10.1002/2016RG000534. Gas hydrate, a frozen, naturally-occurring, and highly-concentrated form of meth...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/8978 2023-05-15T15:15:21+02:00 The interaction of climate change and methane hydrates Ruppel, Carolyn D. Kessler, John D. 2017-02-08 https://hdl.handle.net/1912/8978 en_US eng John Wiley & Sons https://doi.org/10.1002/2016RG000534 Reviews of Geophysics 55 (2017): 126–168 https://hdl.handle.net/1912/8978 doi:10.1002/2016RG000534 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Reviews of Geophysics 55 (2017): 126–168 doi:10.1002/2016RG000534 Methane hydrate Climate Global warming Greenhouse gas Article 2017 ftwhoas https://doi.org/10.1002/2016RG000534 2022-05-28T22:59:54Z © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Reviews of Geophysics 55 (2017): 126–168, doi:10.1002/2016RG000534. Gas hydrate, a frozen, naturally-occurring, and highly-concentrated form of methane, sequesters significant carbon in the global system and is stable only over a range of low-temperature and moderate-pressure conditions. Gas hydrate is widespread in the sediments of marine continental margins and permafrost areas, locations where ocean and atmospheric warming may perturb the hydrate stability field and lead to release of the sequestered methane into the overlying sediments and soils. Methane and methane-derived carbon that escape from sediments and soils and reach the atmosphere could exacerbate greenhouse warming. The synergy between warming climate and gas hydrate dissociation feeds a popular perception that global warming could drive catastrophic methane releases from the contemporary gas hydrate reservoir. Appropriate evaluation of the two sides of the climate-methane hydrate synergy requires assessing direct and indirect observational data related to gas hydrate dissociation phenomena and numerical models that track the interaction of gas hydrates/methane with the ocean and/or atmosphere. Methane hydrate is likely undergoing dissociation now on global upper continental slopes and on continental shelves that ring the Arctic Ocean. Many factors—the depth of the gas hydrates in sediments, strong sediment and water column sinks, and the inability of bubbles emitted at the seafloor to deliver methane to the sea-air interface in most cases—mitigate the impact of gas hydrate dissociation on atmospheric greenhouse gas concentrations though. There is no conclusive proof that hydrate-derived methane is reaching the atmosphere now, but more observational data and improved numerical models will better characterize the climate-hydrate synergy in the future. U.S. Geological Survey (USGS); USGS and the ... Article in Journal/Newspaper Arctic Arctic Ocean Climate change Global warming Methane hydrate permafrost Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Arctic Ocean Reviews of Geophysics 55 1 126 168 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Methane hydrate Climate Global warming Greenhouse gas |
spellingShingle |
Methane hydrate Climate Global warming Greenhouse gas Ruppel, Carolyn D. Kessler, John D. The interaction of climate change and methane hydrates |
topic_facet |
Methane hydrate Climate Global warming Greenhouse gas |
description |
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Reviews of Geophysics 55 (2017): 126–168, doi:10.1002/2016RG000534. Gas hydrate, a frozen, naturally-occurring, and highly-concentrated form of methane, sequesters significant carbon in the global system and is stable only over a range of low-temperature and moderate-pressure conditions. Gas hydrate is widespread in the sediments of marine continental margins and permafrost areas, locations where ocean and atmospheric warming may perturb the hydrate stability field and lead to release of the sequestered methane into the overlying sediments and soils. Methane and methane-derived carbon that escape from sediments and soils and reach the atmosphere could exacerbate greenhouse warming. The synergy between warming climate and gas hydrate dissociation feeds a popular perception that global warming could drive catastrophic methane releases from the contemporary gas hydrate reservoir. Appropriate evaluation of the two sides of the climate-methane hydrate synergy requires assessing direct and indirect observational data related to gas hydrate dissociation phenomena and numerical models that track the interaction of gas hydrates/methane with the ocean and/or atmosphere. Methane hydrate is likely undergoing dissociation now on global upper continental slopes and on continental shelves that ring the Arctic Ocean. Many factors—the depth of the gas hydrates in sediments, strong sediment and water column sinks, and the inability of bubbles emitted at the seafloor to deliver methane to the sea-air interface in most cases—mitigate the impact of gas hydrate dissociation on atmospheric greenhouse gas concentrations though. There is no conclusive proof that hydrate-derived methane is reaching the atmosphere now, but more observational data and improved numerical models will better characterize the climate-hydrate synergy in the future. U.S. Geological Survey (USGS); USGS and the ... |
format |
Article in Journal/Newspaper |
author |
Ruppel, Carolyn D. Kessler, John D. |
author_facet |
Ruppel, Carolyn D. Kessler, John D. |
author_sort |
Ruppel, Carolyn D. |
title |
The interaction of climate change and methane hydrates |
title_short |
The interaction of climate change and methane hydrates |
title_full |
The interaction of climate change and methane hydrates |
title_fullStr |
The interaction of climate change and methane hydrates |
title_full_unstemmed |
The interaction of climate change and methane hydrates |
title_sort |
interaction of climate change and methane hydrates |
publisher |
John Wiley & Sons |
publishDate |
2017 |
url |
https://hdl.handle.net/1912/8978 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Global warming Methane hydrate permafrost |
genre_facet |
Arctic Arctic Ocean Climate change Global warming Methane hydrate permafrost |
op_source |
Reviews of Geophysics 55 (2017): 126–168 doi:10.1002/2016RG000534 |
op_relation |
https://doi.org/10.1002/2016RG000534 Reviews of Geophysics 55 (2017): 126–168 https://hdl.handle.net/1912/8978 doi:10.1002/2016RG000534 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1002/2016RG000534 |
container_title |
Reviews of Geophysics |
container_volume |
55 |
container_issue |
1 |
container_start_page |
126 |
op_container_end_page |
168 |
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1766345719776542720 |