World agriculture needs to find the right balance to cope with the trilemma between feeding a growing population, reducing its impact on biodiversity and minimizing greenhouse gas (GHG) emissions.In this paper, we evaluate a broad range of scenarios that achieve 4.3 Course a pied - Homme - Vetements - Manteau - Nylon GtCO _2,eq /year GHG mitigation in the Agriculture, Forestry and Other Land-Use (AFOLU) sector by 2100.Scenarios include varying mixes of three GHG mitigation policies: second-generation biofuel production, dietary change and reforestation of pasture.We find that focusing mitigation on a single policy can lead to positive results for a single indicator of food security or biodiversity conservation, but with significant Classic Tote negative side effects on others.
A balanced portfolio of all three mitigation policies, while not optimal for any single criterion, minimizes trade-offs by avoiding large negative effects on food security and biodiversity conservation.At the regional scale, the trade-off seen globally between biodiversity and food security is nuanced by different regional contexts.