Limiting future atmospheric carbon dioxide
作者:
Jorge L. Sarmiento,
Corinne Le Quéré,
Stephen W. Pacala,
期刊:
Global Biogeochemical Cycles
(WILEY Available online 1995)
卷期:
Volume 9,
issue 1
页码: 121-137
ISSN:0886-6236
年代: 1995
DOI:10.1029/94GB01779
数据来源: WILEY
摘要:
We estimate anthropogenic carbon emissions required to stabilize future atmospheric CO2at various levels ranging from 350 ppm to 750 ppm. Over the next three centuries, uptake by the ocean and terrestrial biosphere would permit emissions to be 3 to 6 times greater than the total atmospheric increase, with each of them contributing approximately equal amounts. Owing to the nonlinear dependence of oceanic and terrestrial biospheric uptake on CO2concentration, the uptake by these two sinks decreases substantially at higher atmospheric CO2levels. The uptake also decreases with increased atmospheric CO2growth rate. All the stabilization scenarios require a substantial future reduction in emissions.
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