Campus Sustainability Day, Oct. 22, featured a campuswide idea exchange for reducing Cornell's carbon footprint and talks with campus leaders on strategies for achieving climate neutrality. Other activities included free samples of locally grown food, a tour of Weill Hall and a display of a 100-mpg car being developed at Cornell.

Here, David Lieb, assistant director at Cornell's Transportation Management Services and chairman of the board of Ithaca Carshare, talks about alternative transportation options during Campus Sustainability Day in the atrium of Weill Hall.