Courier Mail: CORAL growth on the Great Barrier Reef has plummeted by more than 20 per cent as acidity rises in the world’s oceans. Scientists warn warmer sea temperatures and acidity are having an unprecedented impact on coral growth. Townsville-based Australian Institute of Marine Science climate change expert Dr Janice Lough said the findings were extremely worrying. Dr Lough’s study, published today in Global Change Biology, found a 21 per cent fall in the rate at which Porites …