The geological methane budget at Continental Margins and its influence on climate change
Abstract Geological methane, generated by microbial decay and the thermogenic breakdown of organic matter, migrates towards the surface (seabed) to be trapped in reservoirs, sequestered by gas hydrates or escape through natural gas seeps or mud volcanoes (via ebullition). The total annual geological...
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crwiley:10.1046/j.1468-8123.2002.00027.x 2024-09-30T14:36:25+00:00 The geological methane budget at Continental Margins and its influence on climate change Judd, A. G. Hovland, M. Dimitrov, L. I. García Gil, S. Jukes, V. 2002 http://dx.doi.org/10.1046/j.1468-8123.2002.00027.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1468-8123.2002.00027.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1468-8123.2002.00027.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geofluids volume 2, issue 2, page 109-126 ISSN 1468-8115 1468-8123 journal-article 2002 crwiley https://doi.org/10.1046/j.1468-8123.2002.00027.x 2024-09-17T04:49:22Z Abstract Geological methane, generated by microbial decay and the thermogenic breakdown of organic matter, migrates towards the surface (seabed) to be trapped in reservoirs, sequestered by gas hydrates or escape through natural gas seeps or mud volcanoes (via ebullition). The total annual geological contribution to the atmosphere is estimated as 16–40 Terragrammes (Tg) methane; much of this natural flux is ‘fossil’ in origin. Emissions are affected by surface conditions (particularly the extent of ice sheets and permafrost), eustatic sea‐level and ocean bottom‐water temperatures. However, the different reservoirs and pathways are affected in different ways. Consequently, geological sources provide both positive and negative feedback to global warming and global cooling. Gas hydrates are not the only geological contributors to feedback. It is suggested that, together, these geological sources and reservoirs influence the direction and speed of global climate change, and constrain the extremes of climate. Article in Journal/Newspaper Ice permafrost Wiley Online Library Geofluids 2 2 109 126 |
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Wiley Online Library |
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English |
description |
Abstract Geological methane, generated by microbial decay and the thermogenic breakdown of organic matter, migrates towards the surface (seabed) to be trapped in reservoirs, sequestered by gas hydrates or escape through natural gas seeps or mud volcanoes (via ebullition). The total annual geological contribution to the atmosphere is estimated as 16–40 Terragrammes (Tg) methane; much of this natural flux is ‘fossil’ in origin. Emissions are affected by surface conditions (particularly the extent of ice sheets and permafrost), eustatic sea‐level and ocean bottom‐water temperatures. However, the different reservoirs and pathways are affected in different ways. Consequently, geological sources provide both positive and negative feedback to global warming and global cooling. Gas hydrates are not the only geological contributors to feedback. It is suggested that, together, these geological sources and reservoirs influence the direction and speed of global climate change, and constrain the extremes of climate. |
format |
Article in Journal/Newspaper |
author |
Judd, A. G. Hovland, M. Dimitrov, L. I. García Gil, S. Jukes, V. |
spellingShingle |
Judd, A. G. Hovland, M. Dimitrov, L. I. García Gil, S. Jukes, V. The geological methane budget at Continental Margins and its influence on climate change |
author_facet |
Judd, A. G. Hovland, M. Dimitrov, L. I. García Gil, S. Jukes, V. |
author_sort |
Judd, A. G. |
title |
The geological methane budget at Continental Margins and its influence on climate change |
title_short |
The geological methane budget at Continental Margins and its influence on climate change |
title_full |
The geological methane budget at Continental Margins and its influence on climate change |
title_fullStr |
The geological methane budget at Continental Margins and its influence on climate change |
title_full_unstemmed |
The geological methane budget at Continental Margins and its influence on climate change |
title_sort |
geological methane budget at continental margins and its influence on climate change |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1046/j.1468-8123.2002.00027.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1468-8123.2002.00027.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1468-8123.2002.00027.x |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Geofluids volume 2, issue 2, page 109-126 ISSN 1468-8115 1468-8123 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1468-8123.2002.00027.x |
container_title |
Geofluids |
container_volume |
2 |
container_issue |
2 |
container_start_page |
109 |
op_container_end_page |
126 |
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1811639477967257600 |