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Oxygen, phosphorous and early life on Earth

Two billion years ago the Earth system was recovering from perhaps the single-most profound modification of its surface environments: the oxygenation of the atmosphere and oceans. This led to a series of major changes in ...

dateNov 17, 2013 in Earth Sciences
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Oceans stem the tide of evolution

(PhysOrg.com) -- Toxic seas may have been responsible for delaying the evolution of life on Earth by 1 billion years, experts at Newcastle University have revealed.

dateJun 21, 2010 in Earth Sciences
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