An Ominous Warning on the Effects of Ocean Acidification

A new study says the seas are acidifying ten times faster today than 55 million years ago when a mass extinction of marine species occurred. And, the study concludes, current changes in ocean chemistry due to the burning of fossil fuels may portend a new wave of die-offs.
by carl zimmer

http://www.e360.yale.edu/content/feature.msp?id=2241