Thursday, October 24 at 2:00 pm Speaking in Maine takes us next to Orono and the University of Maine for the 2019 Mitchell Lecture on Sustainability. The keynote speaker is E.J. Milner-Gulland, Tasso Leventis Professor of Biodiversity at the University of Oxford, United Kingdom, who speaks on “An Optimistic Vision for a Sustainable, Wild, and Socially Just World.” Senator George J. Mitchell provides remarks.