Risk analysis of global warming-induced greenhouse gas emissions from natural sources
The increase in the emissions of greenhouse gases (GHG) CO2, CH4, and N2O is the most important factor causing global warming. Natural sources make up about 96%, 46%, and 64% of total emissions of the three gases, respectively. Relatively small man-made CO2 fluxes, together with CH4 and N2O (with a...
Published in: | International Journal of Safety and Security Engineering |
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ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0469762 2024-02-04T10:03:52+01:00 Risk analysis of global warming-induced greenhouse gas emissions from natural sources Mander, Ü. Sohar, K. (Kristina) Tournebize, J. Pärn, J. 2016 https://doi.org/10.2495/SAFE-V6-N2-181-192 http://hdl.handle.net/11104/0267555 eng eng doi:10.2495/SAFE-V6-N2-181-192 urn:pissn: 2041-9031 http://hdl.handle.net/11104/0267555 carbon dioxide climate extremes nitrous oxide info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftczacademyscien https://doi.org/10.2495/SAFE-V6-N2-181-192 2024-01-09T17:37:41Z The increase in the emissions of greenhouse gases (GHG) CO2, CH4, and N2O is the most important factor causing global warming. Natural sources make up about 96%, 46%, and 64% of total emissions of the three gases, respectively. Relatively small man-made CO2 fluxes, together with CH4 and N2O (with a radiative force 34 and 298 times higher than that of CO2, respectively) upset the natural balance of the carbon (C) cycle and create an artificial forcing of global temperatures which is warming the planet. However, even after stopping all anthropogenic CO2 emissions, the warming-induced GHG from natural sources will cause an on-going temperature increase and many resulting environmental problems. Base on literature, we analyse the potential change in GHG emissions from the main natural sources, which are influenced by the effects of global warming. Since there are various uncertainties in the estimations of terrestrial-atmosphere and ocean-atmosphere CO2 exchange, this most important factor remains un-predicted and needs significantly more investigation of the ability of oceans and terrestrial ecosystems to absorb CO2. Both CH4 and N2O emissions may continue to increase. The thawing of CH4 hydrates in the ocean shelf and in permafrost regions is the largest long-term threat for global warming, but even now rising temperature will enhance emissions from wetlands, lakes, vegetation and even upland soils, due to an increasing threat of wildfires. Changes in hydrological regime are the main driving force for N2O emissions. Article in Journal/Newspaper permafrost The Czech Academy of Sciences: Publication Activity (ASEP) International Journal of Safety and Security Engineering 6 2 181 192 |
institution |
Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
carbon dioxide climate extremes nitrous oxide |
spellingShingle |
carbon dioxide climate extremes nitrous oxide Mander, Ü. Sohar, K. (Kristina) Tournebize, J. Pärn, J. Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
topic_facet |
carbon dioxide climate extremes nitrous oxide |
description |
The increase in the emissions of greenhouse gases (GHG) CO2, CH4, and N2O is the most important factor causing global warming. Natural sources make up about 96%, 46%, and 64% of total emissions of the three gases, respectively. Relatively small man-made CO2 fluxes, together with CH4 and N2O (with a radiative force 34 and 298 times higher than that of CO2, respectively) upset the natural balance of the carbon (C) cycle and create an artificial forcing of global temperatures which is warming the planet. However, even after stopping all anthropogenic CO2 emissions, the warming-induced GHG from natural sources will cause an on-going temperature increase and many resulting environmental problems. Base on literature, we analyse the potential change in GHG emissions from the main natural sources, which are influenced by the effects of global warming. Since there are various uncertainties in the estimations of terrestrial-atmosphere and ocean-atmosphere CO2 exchange, this most important factor remains un-predicted and needs significantly more investigation of the ability of oceans and terrestrial ecosystems to absorb CO2. Both CH4 and N2O emissions may continue to increase. The thawing of CH4 hydrates in the ocean shelf and in permafrost regions is the largest long-term threat for global warming, but even now rising temperature will enhance emissions from wetlands, lakes, vegetation and even upland soils, due to an increasing threat of wildfires. Changes in hydrological regime are the main driving force for N2O emissions. |
format |
Article in Journal/Newspaper |
author |
Mander, Ü. Sohar, K. (Kristina) Tournebize, J. Pärn, J. |
author_facet |
Mander, Ü. Sohar, K. (Kristina) Tournebize, J. Pärn, J. |
author_sort |
Mander, Ü. |
title |
Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
title_short |
Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
title_full |
Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
title_fullStr |
Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
title_full_unstemmed |
Risk analysis of global warming-induced greenhouse gas emissions from natural sources |
title_sort |
risk analysis of global warming-induced greenhouse gas emissions from natural sources |
publishDate |
2016 |
url |
https://doi.org/10.2495/SAFE-V6-N2-181-192 http://hdl.handle.net/11104/0267555 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
doi:10.2495/SAFE-V6-N2-181-192 urn:pissn: 2041-9031 http://hdl.handle.net/11104/0267555 |
op_doi |
https://doi.org/10.2495/SAFE-V6-N2-181-192 |
container_title |
International Journal of Safety and Security Engineering |
container_volume |
6 |
container_issue |
2 |
container_start_page |
181 |
op_container_end_page |
192 |
_version_ |
1789971676690120704 |