Coral reefs are the nursery for all life in the oceans, a remarkable ecosystem that sustains us. Yet with carbon emissions warming the seas, a phenomenon called "coral bleaching" -- a sign of mass coral death -- has been accelerating around the world, and the public has no idea of the scale or implication of the catastrophe silently raging underwater. (Sinopsis dialihkan otomatis ke Bahasa Inggris karena belum tersedia dalam Bahasa Indonesia)