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Risk to rely on soil carbon sequestration to offset global ruminant emissions

Environmental Studies and Forestry

Risk to rely on soil carbon sequestration to offset global ruminant emissions

Y. Wang, I. J. M. D. Boer, et al.

This research reveals that while carbon sequestration in grasslands offers a potential solution to mitigate greenhouse gas emissions from ruminant systems, it is insufficient on its own. Conducted by Yue Wang and colleagues, this study highlights the significant scale of carbon required to effectively offset emissions, suggesting a need for more comprehensive strategies.

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Playback language: English
Abstract
Carbon sequestration in grasslands has been proposed as an important means to offset greenhouse gas emissions from ruminant systems. This analysis shows that one tonne of carbon sequestrated offsets radiative forcing of a continuous emission of 0.99 kg methane or 0.1 kg nitrous oxide per year over 100 years. About 135 gigatonnes of carbon is required to offset continuous methane and nitrous oxide emissions from the global ruminant sector, nearly twice the current global carbon stock in managed grasslands. Relying solely on carbon sequestration in grasslands to offset warming effects of emissions from current ruminant systems is not feasible.
Publisher
Nature Communications
Published On
Nov 22, 2023
Authors
Yue Wang, Imke J. M. de Boer, U. Martin Persson, Raimon Ripoll-Bosch, Christel Cederberg, Pierre J. Gerber, Pete Smith, Corina E. van Middelaar
Tags
carbon sequestration
grasslands
greenhouse gas emissions
ruminant systems
methane
nitrous oxide
sustainability

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