Articles | Volume 9, issue 2
Earth Syst. Dynam., 9, 663–677, 2018
https://doi.org/10.5194/esd-9-663-2018
Earth Syst. Dynam., 9, 663–677, 2018
https://doi.org/10.5194/esd-9-663-2018

Research article 28 May 2018

Research article | 28 May 2018

The biomass burning contribution to climate–carbon-cycle feedback

Sandy P. Harrison et al.

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Latest update: 26 Jul 2021
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Short summary
Temperature affects fire occurrence and severity. Warming will increase fire-related carbon emissions and thus atmospheric CO2. The size of this feedback is not known. We use charcoal records to estimate pre-industrial fire emissions and a simple land–biosphere model to quantify the feedback. We infer a feedback strength of 5.6  3.2 ppm CO2 per degree of warming and a gain of 0.09 ± 0.05 for a climate sensitivity of 2.8 K. Thus, fire feedback is a large part of the climate–carbon-cycle feedback.
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