Erle Ellis is Professor of Geography and Environmental Systems at the University of Maryland, Baltimore County (UMBC). A Global Highly Cited Researcher, he studies the ecology of human landscapes to inform sustainable stewardship of the biosphere. He teaches environmental science and landscape ecology, which he has also taught at Harvard’s Graduate School of Design. He is a Visiting Fellow at Oxford’s Martin School, Lead Author of the IPBES Transformative Change Assessment, Fellow of the Global Land Programme, Senior Fellow of the Breakthrough Institute, and former member of the Anthropocene Working Group. His book, Anthropocene: A Very Short Introduction, was published in 2018.