Sue Biniaz, a Senior Fellow and Lecturer at the Yale Jackson Institute, rejoined the U.S. State Department at the beginning of the Biden-Harris Administration. She serves as a Deputy to Special Presidential Envoy for Climate John Kerry. Sue previously served as a Deputy Legal Adviser at the State Department and, for more than 25 years, served as the lead climate lawyer for the United States. In that capacity, she played a central role in all major international climate negotiations, including the Paris Agreement on climate change.