NBC News: Acidic waters along the West Coast are dissolving the shells of tiny sea snails that are a food source for salmon, herring and other fish, scientists reported Wednesday, and conditions are worse than they expected. Caused by increasing carbon dioxide in the atmosphere, the oceans growing acidity threatens not just to the creatures at the bottom of the food chain, but seafood-eating higher life forms such dolphins, whales and humans.
Oceans absorb carbon dioxide from the atmosphere, and scientists...