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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Agricultural productivity and greenhouse gas emissions: Trade-offs or synergies between mitigation and food security?
Environmental Research Letters, Volume 8, No. 3, Article 035019, Year 2013
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Description
In this letter, we investigate the effects of crop yield and livestock feed efficiency scenarios on greenhouse gas (GHG) emissions from agriculture and land use change in developing countries. We analyze mitigation associated with different productivity pathways using the global partial equilibrium model GLOBIOM. Our results confirm that yield increase could mitigate some agriculture-related emissions growth over the next decades. Closing yield gaps by 50% for crops and 25% for livestock by 2050 would decrease agriculture and land use change emissions by 8% overall, and by 12% per calorie produced. However, the outcome is sensitive to the technological path and which factor benefits from productivity gains: sustainable land intensification would increase GHG savings by one-third when compared with a fertilizer intensive pathway. Reaching higher yield through total factor productivity gains would be more efficient on the food supply side but halve emissions savings due to a strong rebound effect on the demand side. Improvement in the crop or livestock sector would have different implications: crop yield increase would bring the largest food provision benefits, whereas livestock productivity gains would allow the greatest reductions in GHG emission. Combining productivity increases in the two sectors appears to be the most efficient way to exploit mitigation and food security co-benefits. © 2013 IOP Publishing Ltd.
Authors & Co-Authors
Valin, Hugo
Austria, Laxenburg
International Institute for Applied Systems Analysis, Laxenburg
Havlik, Petr
Austria, Laxenburg
International Institute for Applied Systems Analysis, Laxenburg
Kenya, Nairobi
International Livestock Research Institute Nairobi
Mosnier, Aline
Austria, Laxenburg
International Institute for Applied Systems Analysis, Laxenburg
Herrero, Mario
Kenya, Nairobi
International Livestock Research Institute Nairobi
Australia, Canberra
Commonwealth Scientific and Industrial Research Organisation
Schmid, Erwin
Austria, Vienna
Universitat Fur Bodenkultur Wien
Obersteiner, Michael H.
Austria, Laxenburg
International Institute for Applied Systems Analysis, Laxenburg
Statistics
Citations: 189
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1088/1748-9326/8/3/035019
e-ISSN:
17489326
Research Areas
Environmental
Food Security