In January 2022, Alan joined the Wellcome Trust to lead its ambitious new strategy that aims to put health at the heart of global climate change action. Alan was previously based at the London School of Hygiene & Tropical Medicine for twenty years, where he was a Professor of Food and Nutrition for Global Health and Director of the Centre on Climate Change and Planetary Health. Alan led an interdisciplinary team working on the interconnections between environmental change, food systems and health. Familiar working in national and international fora, Alan was an Expert Advisor to the Environmental Audit Committee of the UK Parliament and a Senior Research Fellow at the UK Department for International Development.