Dennis Garrity is a Distinguished Senior Research Fellow at the World Agroforestry Centre (ICRAF), Nairobi. From 2001 to 2011, he served as ICRAF’s Director General. Currently he is Drylands Ambassador for the UN Convention to Combat Desertification. He also leads an effort on the perennialization of agriculture in the 21st Century, building more productive and environmentally sound farming systems through a global Partnership to Create an EverGreen Agriculture. Mr. Garrity also chairs the Steering Committee for Landcare International, a worldwide effort to support community-based natural resource management. He is a systems agronomist and research leader whose career has been focused on the development of small-scale farming systems in the tropics.