President-elect Joe Biden picked former Massachusetts Senator and Secretary of State John Kerry to serve as Special Presidential Envoy for Climate. Kerry will serve on Biden's National Security Council, marking the first time the NSC will have someone focused on climate change. Kerry's deep interest in climate change and years of experience on the international stage as a senator and secretary of state make him ready for action on Day 1. Moreover, Kerry signed the Paris Climate Agreement on behalf of the U.S. in 2015--before the current administration reversed course--making Kerry uniquely situated for the role of getting the U.S. back into fighting climate change along with other countries that have signed up to the Paris Agreement.