Dr. Dennis P. Garrity is a systems agronomist and research leader whose career has been focused on the development of small-scale farming systems in the tropics. He was the Founding Chair of the Board of the Global EverGreening Alliance, with 106 member organizations, implementing large-scale programs on land restoration in the developing world. He is the Board Chair of the Healthy Planet Action Coalition, an organization of about 250 scientists and influencers mobilizing the global community to adopt a new goal to reverse global heating by implementing a more comprehensive plan to cool the planet.  He is Distinguished Senior Research Fellow World Agroforestry Centre (ICRAF), Nairobi and served as Director General of the Centre from 2001 to 2011. He was Drylands Ambassador for the UN Convention to Combat Desertification from 2011 to 2018, emphasizing the role of agroforestry, evergreen agriculture and landcare as critical to sustainable land management. He has published over 200 research papers, books and popular articles on a wide range of topics related to climate change, agriculture, farming systems, agroforestry, natural resources, and the environment.