Rohit T. “Rit” Aggarwala is chief policy officer for Sidewalk Labs. He is also an adjunct professor of international and public affairs at Columbia University, and he co-chairs the Regional Plan Association’s Fourth Regional Plan for the New York metropolitan area. Rit served as special adviser to the chair of the C40 Cities Climate Leadership Group during 2010-13 and before that was director of New York City’s Office of Long-Term Planning and Sustainability during 2006-10, leading the creation and implementation of “PlaNYC: A Greener, Greater New York.”