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Ocean Acidification Triggered Greatest Mass Extinction Ever
2015-04-10 23:03:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: It's no secret that ocean acidification caused by climate change is currently wreaking havoc on our oceans, but a new study shows that acidic oceans also triggered the greatest mass extinction ever on Earth. Thanks to extreme volcanic activity about 252 million years ago, the world's oceans changed so drastically that it wiped out more than 90 percent of marine species, and more than two-thirds of the animals living on land. The event occurred when Earth's oceans absorbed huge amounts of carbon...
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Ocean acidification killed off more than 90% marine life 252 million years ago, scientists
2015-04-09 20:46:00| Climate Ark Climate Change & Global Warming Newsfeed
Independent: They call it the Great Dying because it was the biggest mass extinction in history, and now scientists have discovered the first hard evidence that ocean acidification was the coup de grace that killed off more than 90 per cent of marine life 252 million years ago. In a disturbing parallel to what is happening in the sea today, researchers have found chemical signatures in ancient rock formations showing that the oceans at that time suddenly became more acidic, making it impossible for the vast...
Ocean acidification slows algae growth in the Southern Ocean
2015-02-24 13:00:00| LifeSciencesWorld
[NEWS] Bremerhaven, 24 February 2015. In a recent study, scientists at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), demonstrate for the first time that ocean acidification could have negative impacts on diatoms in the Southern Ocean. In laboratory tests they were able to observe that under changing light conditions, diatoms grow more slowly in acidic water. In so doing, Dr Clara Hoppe and her team have overturned the widely held assumption that sinking …
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Heres Where Ocean Acidification Will Hit the U.S. Hardest
2015-02-23 18:01:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate Central: U.S. coastal communities better start preparing for ocean acidification now, especially if we want scallops, oysters and other shellfish to keep appearing on our dinnerplates. That's the message of a new study that shows that shellfisheries across the U.S. are more vulnerable to climate change's less considered counterpart than previously thought. That vulnerability is due to more than changing ocean chemistry. Social and economic factors, local and more distant pollution and natural ocean processes...
Study outlines threat of ocean acidification to coastal communities in US
2015-02-23 13:00:00| LifeSciencesWorld
[NEWS] CORVALLIS, Ore. - Coastal communities in 15 states that depend on the $1 billion shelled mollusk industry (primarily oysters and clams) are at long-term economic risk from the increasing threat of ocean acidification, a new report concludes. This first nationwide vulnerability analysis, which was funded through the National Science Foundation's National Socio-Environmental Synthesis Center, was published today in the journal Nature Climate Change. The …
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