Dr. Lucy Hutyra admits she's "a total tree-hugger." She's the Chair of the Department of Earth and Environment at Boston University, and a MacArthur Genius Grant recipient. She and her BU colleagues study the impact of trees on urban environments, particularly their effects on carbon dioxide levels and heat. While trees can reduce heat and CO2 levels, complications arise because urban trees tend to live fast and die young. She shared her research at one of the "Town Talks" put on by Telluride Science and the session was moderated by veteran broadcast journalists Judy Muller and George Lewis
