Science & EnvironmentSearching for the tree at the bottom of the worldBy Kristian Foden-Vencil (OPB)Aug. 5, 2021 1 p.m.Portland State professor on a scientific trek to find the southernmost tree — and what it can teach us about climate change 📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up