We could rear commercial shellfish in controlled pH conditions, but we can't babysit all of the world's marine life to safe adulthood. It looks like ocean warming will have stronger impacts, but taken together the effects can actually be quite dramatic in some cases". Ocean acidification is happening now, says senior lecturer Dr Christina McGraw, of Otago, one of the organisers of the workshop. Photo: SuppliedOceans are alkaline environments that until recently, have maintained a very stable pH of 8.2 for 8million years. So, while the ocean has been protecting us from more severe climate change, this has caused the pH to decline.

Source: Otago Daily Times April 07, 2019 15:33 UTC