More on Coral Reefs

From the BBC. Pretty pictures.

Porites coral on the Great Barrier Reef

Porites coral on the Great Barrier Reef

Externalized costs.

Dr Glenn De’ath and colleagues investigated 328 colonies of massive Porites corals, from 69 locations…. By looking at the coral skeletons, they determined that calcification – or the deposit of calcium carbonate – has declined by 13.3% throughout the Great Barrier Reef since 1990.

Such a decline is unprecedented in at least the past 400 years, they write.

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