Achieving climate-smart agriculture means reducing emissions and increasing carbon sequestration in agriculture without compromising food security or rural livelihoods. The Low-Emissions Agriculture Flagship works with partners to promote sustainable agricultural development. We improve estimates of farm emissions. We develop models of low-emissions options and tools to help decision-makers prioritize. And we support and analyze mitigation implementation systems, supporting large-scale initiatives and innovations that are key to a sustainable food-secure future.