When Nikolaj Coster-Waldau — best known to many as Jaime Lannister from Game of Thrones and now a UNDP Goodwill Ambassador — steps into the muddy tidal flats of Kendrapara, he isn’t there for scenery. He’s filming a segment of the new season of 'An Optimist’s Guide to the Planet' (2024) that follows how villagers, scientists and government programmes are restoring mangroves as living coastal armour against rising seas and storm surges. The sequence brings international attention to a quiet but high-stakes experiment in resilience on India’s east coast.

