A deadly recipe threatens the survival of countless creatures throughout Earth's ocean: carbon dioxide. With carbon emissions sharply rising, the silent killer is entering the seas at a staggering rate--raising the oceans' acidity. As a result, the skeletons and shells of marine creatures that form the foundation of the web of life are dissolving. Can experts crack the code of a rapidly changing ocean before it is too late?

Originally released by PBS, 2015. Streaming video file encoded with permission for digital streaming by Infobase on February 13, 2017.

Ocean Acidification Threat (4:58); --Compromising Calcium Carbonate (3:50); -- Natural Ocean Acidification Laboratory (4:11); -- Experimental Challenges (4:05); -- Changes in Coral Reef Biodiversity (5:40); -- Plankton Changes (4:19); -- Mass Extinction Scenario (3:06); -- Fish Changes (2:55); -- Ocean Acidification and Fish Behavior (3:30); -- Genetic Adaptations (5:19); -- Coral Reef Survival Mechanisms (1:59); -- Coral Spawning Experiment (3:47); -- Future of Coral Reefs (2:54); -- Credits: Lethal Seas (0:51); .