Graciela Chichilnisky, lead architect of the carbon market of the Kyoto Protocol and a professor of economics and mathematical statistics at Columbia University, will give the keynote presentation for the 2018 Sustainability Symposium on Thursday, March 22, at 7 p.m. in Leanne Freas Trout Auditorium. Bucknell President John Bravman will introduce Chichilnisky, who also contributed to reports of the Intergovernmental Panel on Climate Change (IPCC), the organization that shared the 2007 Nobel Peace Prize with Al Gore, “for their efforts to build up and disseminate greater knowledge about man-made climate change, and to lay the foundations for the measures that are needed to counteract such change.”