Earth Optimism's video: Climate Change and Coastal Cities: Hosted by Bill Weir

Political and business leaders join scientists in a discussion of how we are restoring and building resiliency and sustainability into our port cities, where most of our people live and the majority of our economy is based. Bill Weir, Moderator – CNN Anchor & Chief Climate Correspondent Thad Allen – Commandant, United States Coast Guard; Former Director Federal Response to Hurricane Katrina Libby Schaaf – Mayor, Oakland California Emily Pidgeon – Vice President of Ocean Science and Innovation, Conservation International Gregory M. Ruiz – Director of Marine Invasions Research, Smithsonian Environmental Research Center Phil Ryan – Chairman, Swiss Re Americas Anson “Tuck” Hines, Organizer – Director, Smithsonian Environmental Research Center