Atmospheric carbon dioxide due to industrialization is not only warming the planet, it is also dissolving into the oceans, making them more acidic and binding to minerals that coral and shellfish need to build their skeletons and shells, imperiling coral reefs. The rapid pace of ocean acidification has alarmed the small circle of scientists who study it. They warn of a collapse this century in ocean food chains. Among those who would suffer: poor people in developing countries who rely on coastal fisheries. Lawrence MacDonald, CGD director of communications and policy, says that the development policy community should pay serious attention to what the scientists are telling us. Read the blog and comment