Summary: World leaders converge on Copenhagen as a new decade approaches. Can the world craft a response to human-induced climate change? Not without taking the ocean into account. Seldom has such a group convened, with such urgency. Seychelles Ambassador Ronnie Jumeau describes how his country and its Pacific island neighbors may soon be underwater. Other experts discuss fresh water, ocean currents, extreme weather, disease, coastal impacts, economic consequences, and ocean policy.