Shellfish and the impacts of global warming
Thirty percent of all carbon dioxide produced by burning fossil fuels is absorbed by the ocean. As a result, seawater becomes more acidic reducing the amount of carbonate, a component of the shells of oysters, clams and other shelled marine life. A recent study found that shell formation of larval oysters was significantly impacted when they were subjected to acid levels expected in seawater in the year 2100 when compared with those levels found in the oceans before the industrial revolution. Ultimately high concentrations of carbon dioxide in seawater could effect growth, distributioin and survival of larval oysters and other molluscs.