On September 15, 2017, Edwin Castellanos, PhD, Professor and Director of the Center for Environmental Studies and Biodiversity at the Universidad del Valle de Guatemala, visited ASU to deliver a talk titled “No Need for Persuasion: Evidence of Mesoamerica’s Changing Climate.” Castellanos has researched adaptation and mitigation to climate change in Guatemala for the past 20 years. He was a lead author in the Intergovernmental Panel on Climate Change Fifth Assessment Report on climate change for the chapter on Central and South America. In this talk, Castellanos discussed adaptation and mitigation efforts currently underway in Mesoamerica, with an emphasis on Guatemala. The region’s efforts have been in response to highly variable and unusual climate experienced over the last two decades by different populations. A video of the presentation is available here. This event was sponsored by the ASU Center for Biodiversity Outcomes and the Julie Ann Wrigley Global Institute of Sustainability.