Virtual Valley Talk: The Past and Present of the Lenape in Pennsylvania // October 20, 2020 Cancelled: Valley Talk: The Past and Present of the Lenape in Pennsylvania // May 12, 2020 Valley Talk: Pests, Pollinators, and You in a Changing Climate // May 14, 2019 Valley Talk: Social Architecture for Resilient and Sustainable Communities // March 19, 2019 Valley Talk: The Green Amendment: Securing Our Right to a Healthy Environment with Maya van Rossum, The Delaware Riverkeeper // December 04, 2018 Valley Talk: Bird-Window Collisions with Keith Russell // October 23, 2018 What the Catfish saw- Climate Change in Wissahickon // September 25, 2018 Restoring a Piece of the Past: Efforts to Bring back the American Chestnut Conservation // October 26, 2016