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Acidic oceans helped fuel extinction
2015-04-09 22:21:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: Acidic oceans helped fuel the biggest mass extinction in the history of life on Earth, a study says. The exact causes behind the Permian-Triassic mass extinction have been much debated. Two separate pulses of CO2 into the atmosphere - a "one-two punch" - may have helped fuel the die-off, new research suggests. Changes to ocean acidity would have been one of the consequences, according to the study in Science journal. Computer models suggested that this CO2 may have been released by massive...
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Acidic oceans implicated in Earth's worst mass extinction
2015-04-09 20:20:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: It is one of science's enduring mysteries: what caused the worst mass extinction in Earth's history. And, no, it is not the one that wiped out the dinosaurs. Scientists said on Thursday that huge amounts of carbon dioxide spewed from colossal volcanic eruptions in Siberia may have turned the world's oceans dangerously acidic 252 million years ago, helping to drive a global environmental calamity that killed most land and sea creatures. The researchers studied rocks in the United Arab Emirates...
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Greatest mass extinction driven by acidic oceans, study finds
2015-04-09 12:00:00| LifeSciencesWorld
[NEWS] Changes to the Earth's oceans, caused by extreme volcanic activity, triggered the greatest extinction of all time, a study suggests.The event, which took place 252 million years ago, wiped out more than 90 per cent of marine species and more than two-thirds of the animals living on land. It happened when Earth's oceans absorbed huge amounts of carbon dioxide from volcanic eruptions, researchers say. This ch…
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20 Year Old Claims He Can Rid the Worlds Oceans of Plastic
2015-04-08 14:32:00| Climate Ark Climate Change & Global Warming Newsfeed
EcoWatch: Last June, an intrepid teenaged environmentalist made headlines after developing The Ocean Cleanup, described as the worlds first feasible concept to clean the oceans of plastic. Boyan Slat, a Dutch former aerospace engineering student, said his plastic-capturing concept can clean half the Great Pacific Garbage Patch in a decade. The project was inspired after the young man took a diving trip in Greece in 2011 and saw more plastic in the water than fish. Slats ambitious projectproposed...
How Long Can Oceans Continue Absorb Earths Excess Heat?
2015-03-30 15:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Yale Environment 360: For decades, the earths oceans have soaked up more than nine-tenths of the atmospheres excess heat trapped by greenhouse gas emissions. By stowing that extra energy in their depths, oceans have spared the planet from feeling the full effects of humanitys carbon overindulgence. But as those gases build in the air, an energy overload is rising below the waves. A raft of recent research finds that the ocean has been heating faster and deeper than scientists had previously thought. And there are...
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