| Ocean acidification is now one of the most worrying threats to the planet, say marine biologists. "Just as Vulcano is pumping carbon dioxide into the waters around it, humanity is pouring more and more carbon dioxide into the atmosphere," Dr Jason Hall-Spencer, a marine biologist at Plymouth University, told a conference on the island last week. "Some of the billions of tonnes of carbon dioxide we emit each year lingers in the atmosphere and causes it to heat up, driving global warming. But about 30% of that gas is absorbed by the oceans where it turns to carbonic acid. It is beginning to kill off coral reefs and shellfish beds and threaten stocks of fish. Very little can live in water that gets too acidic." |
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