Your next weekly dose of bad ocean news

BBC NEWS | Science & Environment | Marine life faces 'acid threat'

Man-made pollution is raising ocean acidity at least 10 times faster than previously thought, a study says.

Researchers say carbon dioxide levels are having a marked effect on the health of shellfish such as mussels.

They sampled coastal waters off the north-west Pacific coast of the US every half-hour for eight years.

The results, published in the journal PNAS, suggest that earlier climate change models may have underestimated the rate of ocean acidification.

To be fair, some reported comments of one of the researchers involved are misleadingly expressed:

"Many sea creatures have shells or skeletons made of calcium carbonate, which the acid can dissolve," said Catherine Pfister, Associate Professor of Ecology and Evolution at the University of Chicago and a co-author of the study.

That could easily be taken to mean the ocean is actually turning into an acidic pH, but ocean acidification at its worst will still leave the ocean alkaline (just significantly less alkaline than it used to be.)

Anyhow, it's still bad news, by any interpretation.