Todd Rosenstock is an agroecologist with the World Agroforestry Centre (ICRAF) where he investigates how smallholder agriculture affects the environment and society. In particular, Dr. Rosenstock’s research examines the synergies and trade-offs among food production, soil degradation, and climate at farm and landscape scales. His research applies observational and manipulative experiments, data synthesis, and modeling techniques to understand ways to optimize local and global benefits from agricultural systems in developing countries. Dr. Rosenstock currently works in a variety of farming systems in East Africa, including crop-livestock, agroforestry, and continuously cultivated cereals. Methods development is an integral theme of his current work. He co-leads the development of a low-cost protocol (standards of measurement) for quantifying greenhouse gas balance and identifying climate change mitigation options in smallholder systems through ICRAF’sclimate change mitigation lab.