UNESCO: The acidification of the world’s oceans, caused by the absorption of huge volumes of carbon dioxide, is accelerating at an unprecedented rate, threatening marine ecosystems and the livelihoods of tens of millions of people, concluded scientists attending the Second International Symposium on the Ocean in a High CO2 World held in Monaco from 6-9 October. The meeting, attended by 250 marine scientists from 32 countries, was organized by UNESCO’s Intergovernmental Oceanographic …