Dr. Dennis Garrity is an international systems agronomist and research leader whose career has focused on improving small-scale farming systems in the tropics. He has been serving as Drylands Ambassador for the UN Convention to Combat Desertification, emphasizing the role of agroforestry, evergreen agriculture and landcare for sustainable land management. From 2001 to 2011, he was Director General of the World Agroforestry Centre. He is currently Chair of the Board of the Global EverGreening Alliance, a partnership of more than 60 major development and conservation organizations around the world, working together to restore hundreds of millions of hectares of degraded land and enhance the livelihoods of millions of the least-favored smallholder farm families in the tropics. He also chaired Landcare International from 2005 to 2020, a worldwide effort to support grassroots community-based natural resource management, and currently is a member of the Board of Global Landcare.