Global food efficiency of climate change mitigation in agriculture
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Concerns exist regarding potential trade-offs between climate change mitigation in
agriculture and food security. Against this background, the Global Biosphere
Management Model (GLOBIOM) is applied to a range of scenarios of mitigation
of emissions from agriculture to assess the implications of climate mitigation for
agricultural production, prices and food availability. The “food efficiency of
mitigation” (FEM) is introduced as a tool to make statements about how to attain
desired levels of agricultural mitigation in the most efficient manner in terms of
food security. It is applied to a range of policy scenarios which contrast a climate
policy regime with full global collaboration to scenarios of fragmented climate
policies that grant exemptions to selected developing country groups. Results
indicate increasing marginal costs of abatement in terms of food calories and
suggest that agricultural mitigation is most food efficient in a policy regime with
global collaboration. Exemptions from this regime cause food efficiency losses.