Nikolaj Coster-Waldau explores global climate solutions in "An Optimist's Guide to the Planet"

Actor Nikolaj Coster-Waldau, best known for his role as Jaime Lannister in "Game of Thrones," returns with a new season of "An Optimist's Guide to the Planet." The series follows his global journey to uncover innovative ideas for sustainability, from Denmark's coastal waters to communities driving environmental change.