In 1996, Columbia scientists tested Biosphere 2’s ocean under ice-age, modern, and future CO2 levels; future conditions cut coral calcification by 40%
A giant indoor ocean in Arizona showed that future CO2 levels could cut coral skeleton growth by 40%, offering a look at ocean acidification risks.
We haven't written up this one. Hindustan Times - World News has the full story — the link below goes straight to it.