Modelling atmospheric CO2 changes at geological time scales
By trapping infrared radiation, atmospheric CO2 contributes significantly to the greenhouse warming of the planetary surface. Hence, it is thought to have played a key role in the evolution of the Earth's climate over geological time. The history of atmospheric CO2 is available only for the las...
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| Format: | Article |
| Language: | English |
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Association Carnets de Geologie
2005-12-01
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| Series: | Carnets de Géologie |
| Subjects: | |
| Online Access: | http://paleopolis.rediris.es/cg/CG2005_M02/CG2005_M02_Abstract02.html |
| _version_ | 1797724620346884096 |
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| author | François Louis Grard Aline Goddéris Yves |
| author_facet | François Louis Grard Aline Goddéris Yves |
| author_sort | François Louis |
| collection | DOAJ |
| description | By trapping infrared radiation, atmospheric CO2 contributes significantly to the greenhouse warming of the planetary surface. Hence, it is thought to have played a key role in the evolution of the Earth's climate over geological time. The history of atmospheric CO2 is available only for the last few hundred thousand years from the analysis of the air trapped in cores of ice. Therefore, data regarding Pre-Pleistocene atmospheric CO2 must be derived from proxies. These provide indirect estimates of atmospheric CO2 and are much less reliable than ice-core data. The main proxies used to reconstruct atmospheric CO2 are: the 13C isotopic fractionation of marine organisms, the paleo-pH recorded in the boron isotopic composition of ancient carbonates, the stomatal density of fossil leaves and the 13C isotopic composition of paleosols. |
| first_indexed | 2024-03-12T10:19:43Z |
| format | Article |
| id | doaj.art-7e7ea319793c4556a02acb606e9a468a |
| institution | Directory Open Access Journal |
| issn | 1765-2553 1634-0744 |
| language | English |
| last_indexed | 2024-03-12T10:19:43Z |
| publishDate | 2005-12-01 |
| publisher | Association Carnets de Geologie |
| record_format | Article |
| series | Carnets de Géologie |
| spelling | doaj.art-7e7ea319793c4556a02acb606e9a468a2023-09-02T10:15:08ZengAssociation Carnets de GeologieCarnets de Géologie1765-25531634-07442005-12-01CG2005M02_Abstract02Modelling atmospheric CO2 changes at geological time scalesFrançois LouisGrard AlineGoddéris YvesBy trapping infrared radiation, atmospheric CO2 contributes significantly to the greenhouse warming of the planetary surface. Hence, it is thought to have played a key role in the evolution of the Earth's climate over geological time. The history of atmospheric CO2 is available only for the last few hundred thousand years from the analysis of the air trapped in cores of ice. Therefore, data regarding Pre-Pleistocene atmospheric CO2 must be derived from proxies. These provide indirect estimates of atmospheric CO2 and are much less reliable than ice-core data. The main proxies used to reconstruct atmospheric CO2 are: the 13C isotopic fractionation of marine organisms, the paleo-pH recorded in the boron isotopic composition of ancient carbonates, the stomatal density of fossil leaves and the 13C isotopic composition of paleosols.http://paleopolis.rediris.es/cg/CG2005_M02/CG2005_M02_Abstract02.htmlatmosphereCO2modellingcarbon cycleclimategeochemical cycle |
| spellingShingle | François Louis Grard Aline Goddéris Yves Modelling atmospheric CO2 changes at geological time scales Carnets de Géologie atmosphere CO2 modelling carbon cycle climate geochemical cycle |
| title | Modelling atmospheric CO2 changes at geological time scales |
| title_full | Modelling atmospheric CO2 changes at geological time scales |
| title_fullStr | Modelling atmospheric CO2 changes at geological time scales |
| title_full_unstemmed | Modelling atmospheric CO2 changes at geological time scales |
| title_short | Modelling atmospheric CO2 changes at geological time scales |
| title_sort | modelling atmospheric co2 changes at geological time scales |
| topic | atmosphere CO2 modelling carbon cycle climate geochemical cycle |
| url | http://paleopolis.rediris.es/cg/CG2005_M02/CG2005_M02_Abstract02.html |
| work_keys_str_mv | AT francoislouis modellingatmosphericco2changesatgeologicaltimescales AT grardaline modellingatmosphericco2changesatgeologicaltimescales AT godd233risyves modellingatmosphericco2changesatgeologicaltimescales |