Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene
Abstract Cenozoic greenhouse gases ( GHG ) variations and warming periods underscore the extreme rates of current climate change, with major implications for the adaptability and survivability of terrestrial and marine habitats. Current rise rate of greenhouse gases, reaching 3.3 ppm CO 2 per year d...
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crwiley:10.1111/gcb.13342 2024-09-15T18:12:03+00:00 Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene Glikson, Andrew 2016 http://dx.doi.org/10.1111/gcb.13342 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13342 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13342 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 22, issue 12, page 3843-3858 ISSN 1354-1013 1365-2486 journal-article 2016 crwiley https://doi.org/10.1111/gcb.13342 2024-09-05T05:09:34Z Abstract Cenozoic greenhouse gases ( GHG ) variations and warming periods underscore the extreme rates of current climate change, with major implications for the adaptability and survivability of terrestrial and marine habitats. Current rise rate of greenhouse gases, reaching 3.3 ppm CO 2 per year during March 2015–2016, is the fastest recorded since the Paleocene‐Eocene Thermal Event ( PETM ) when carbon release to the atmosphere was about an order of magnitude less than at present. The ice core evidence of concentration of ( GHG ) and temperatures in the atmosphere/ocean/cryosphere system over the last 740 kyr suggests that the rate of rise in GHG over the last ~260 years, CO 2 rates rising from 0.94 ppm yr −1 in 1959 (315.97 ppm) to 1.62 ppm yr −1 in 2000 (369.52 ppm) to 3.05 ppm yr −1 in 2015 (400.83 ppm), constitutes a unique spike in the history of the atmosphere. The reliance of pre‐740 kyr paleoclimate estimates on multiple proxies, including benthic and plankton fossils, fossil plants, residual organic matter, major and trace elements in fossils, sediments and soils, place limits on the resolution of pre‐upper Pleistocene paleoclimate estimates, rendering it likely recorded mean Cenozoic paleoclimate trends may conceal abrupt short‐term climate fluctuations. However, as exemplified by the Paleocene–Eocene thermal maximum ( PETM ) and earlier GHG and temperature spikes associated with major volcanic and asteroid impact events, the long‐term residence time of CO 2 in the atmosphere extends the signatures of abrupt warming events to within detection limits of multiple paleoproxies. The mean post‐1750 temperature rise rate (approximately ~0.0034 °C per yr, or ~0.008 °C per yr where temperature is not masked by sulfur aerosols) exceeds those of the PETM (approximately ~0.0008–0.0015 °C per yr) by an order of magnitude and mean glacial termination warming rates (last glacial termination [ LGT ] ~ 0.00039; Eemian ~0.0004 °C per yr) by near to an order of magnitude. Consistent with previous interglacial peaks ... Article in Journal/Newspaper ice core Wiley Online Library Global Change Biology 22 12 3843 3858 |
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Abstract Cenozoic greenhouse gases ( GHG ) variations and warming periods underscore the extreme rates of current climate change, with major implications for the adaptability and survivability of terrestrial and marine habitats. Current rise rate of greenhouse gases, reaching 3.3 ppm CO 2 per year during March 2015–2016, is the fastest recorded since the Paleocene‐Eocene Thermal Event ( PETM ) when carbon release to the atmosphere was about an order of magnitude less than at present. The ice core evidence of concentration of ( GHG ) and temperatures in the atmosphere/ocean/cryosphere system over the last 740 kyr suggests that the rate of rise in GHG over the last ~260 years, CO 2 rates rising from 0.94 ppm yr −1 in 1959 (315.97 ppm) to 1.62 ppm yr −1 in 2000 (369.52 ppm) to 3.05 ppm yr −1 in 2015 (400.83 ppm), constitutes a unique spike in the history of the atmosphere. The reliance of pre‐740 kyr paleoclimate estimates on multiple proxies, including benthic and plankton fossils, fossil plants, residual organic matter, major and trace elements in fossils, sediments and soils, place limits on the resolution of pre‐upper Pleistocene paleoclimate estimates, rendering it likely recorded mean Cenozoic paleoclimate trends may conceal abrupt short‐term climate fluctuations. However, as exemplified by the Paleocene–Eocene thermal maximum ( PETM ) and earlier GHG and temperature spikes associated with major volcanic and asteroid impact events, the long‐term residence time of CO 2 in the atmosphere extends the signatures of abrupt warming events to within detection limits of multiple paleoproxies. The mean post‐1750 temperature rise rate (approximately ~0.0034 °C per yr, or ~0.008 °C per yr where temperature is not masked by sulfur aerosols) exceeds those of the PETM (approximately ~0.0008–0.0015 °C per yr) by an order of magnitude and mean glacial termination warming rates (last glacial termination [ LGT ] ~ 0.00039; Eemian ~0.0004 °C per yr) by near to an order of magnitude. Consistent with previous interglacial peaks ... |
format |
Article in Journal/Newspaper |
author |
Glikson, Andrew |
spellingShingle |
Glikson, Andrew Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
author_facet |
Glikson, Andrew |
author_sort |
Glikson, Andrew |
title |
Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
title_short |
Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
title_full |
Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
title_fullStr |
Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
title_full_unstemmed |
Cenozoic mean greenhouse gases and temperature changes with reference to the Anthropocene |
title_sort |
cenozoic mean greenhouse gases and temperature changes with reference to the anthropocene |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/gcb.13342 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.13342 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.13342 |
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ice core |
genre_facet |
ice core |
op_source |
Global Change Biology volume 22, issue 12, page 3843-3858 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.13342 |
container_title |
Global Change Biology |
container_volume |
22 |
container_issue |
12 |
container_start_page |
3843 |
op_container_end_page |
3858 |
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1810449645434830848 |