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Another Catastrophe

22 February 2010

Science Daily February 17th … a Nature Geoscience paper on the Carbon Cycle before humans has found that 100 million years ago there were large changes as a result of a massive amount of volcanic activity that introduced carbon dioxide and sulphur into the atmosphere. At the same time one third of marine life died out – which they suggest was due to a drop in oxygen levels in the oceans.

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