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Τρίτη 14 Απριλίου 2015

Acidic oceans linked to greatest extinction ever


Ocean acidification is one of the biggest problems related to today’s carbon dioxide emissions, and a new study has used boron isotope ratios to link the world’s greatest mass extinction with acidic oceans.
A team of geoscientists have found evidence that 252 million years ago massive volcanic eruptions over a 10,000 year period released more CO2 than the oceans could absorb and greatly decreased ocean pH — killing 90% of marine species. Read about their study and how it relates to today’s ocean acidification here: http://ow.ly/LqwrY
We’re trying to help with the ‘ocean acidification problem’ and have established an Ocean Acidification International Coordination Centre to promote facilitate and communicate global activities on ocean acidification, check it out: www.iaea.org/ocean-acidification

Rocks from 252 million years ago suggest that carbon dioxide from volcanoes made sea water lethal.
NATURE.COM

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