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Greening of the Earth pushed way back in timeEugene OR (SPX) Jul 23, 2013 Conventional scientific wisdom has it that plants and other creatures have only lived on land for about 500 million years, and that landscapes of the early Earth were as barren as Mars. A new study, led by geologist Gregory J. Retallack of the University of Oregon, now has presented evidence for life on land that is four times as old - at 2.2 billion years ago and almost half way back to the inception of the planet. That evidence, which is detailed in the September issue of the journal Prec ... read more |
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