sentences:  In February 2010, Jones became a senior fellow at the Center for American Progress.He led their Green Opportunity Initiative "to develop a clearly articulated agenda for expanding investment, innovation, and opportunity through clean energy and environmental restoration".Around the same time, Jones received appointments at Princeton University, as a distinguished visiting fellow in both the Center for African American Studies and in the Program in Science, Technology and Environmental Policy at the Woodrow Wilson School of Public and International Affairs.