Reference : Atmospheric Lifetime of Fossil Fuel Carbon Dioxide
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Atmospheric Lifetime of Fossil Fuel Carbon Dioxide
Archer, David [University of Chicago > Department of Geophysical Sciences > > >]
Eby, Michael [University of Victoria > School of Earth and Ocean Sciences > > >]
Brovkin, Victor [Max Planck Institute for Meteorology > > > >]
Ridgwell, Andy [University of Bristol > School of Geographical Sciences > > >]
Cao, Long [Carnegie Institution > Department of Global Ecology > > >]
Mikolajewicz, Uwe [Max Planck Institute for Meteorology > > > >]
Caldeira, Ken [Carnegie Institution > Department of Global Ecology > > >]
Matsumoto, Katsumi [University of Minnesota > Department of Geology and Geophysics > > >]
Munhoven, Guy mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Montenegro, Alvaro [University of Victoria > School of Earth and Ocean Sciences > > >]
Tokos, Kathy [University of Minnesota > Department of Geology and Geophysics > > >]
Annual Review of Earth and Planetary Sciences
Annual Reviews
Yes (verified by ORBi)
Palo Alto
[en] Anthropogenic CO2 ; Airborne fraction ; Neutralization
[en] CO2 released from combustion of fossil fuels equilibrates among the various carbon reservoirs of the atmosphere, the ocean, and the terrestrial biosphere on timescales of a few centuries. However, a sizeable fraction of the CO2 remains in the atmosphere, awaiting a return to the solid earth by much slower weathering processes and deposition of CaCO3. Common measures of the atmospheric lifetime of CO2, including the e-folding time scale, disregard the long tail. Its neglect in the calculation of global warming potentials leads many to underestimate the longevity of anthropogenic global warming. Here, we review the past literature on the atmospheric lifetime of fossil fuel CO2 and its impact on climate, and we present initial results from a model intercomparison project on this topic. The models agree that 20–35% of the CO2 remains in the atmosphere after equilibration with the ocean (2–20 centuries). Neutralization by CaCO3 draws the airborne fraction down further on timescales of 3 to 7 kyr.
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Researchers ; Students
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