Fossil algae reveal 500 million years of climate change

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Scientists have succeeded in developing a new indicator (proxy) of ancient CO2 levels, using the organic molecule phytane, a debris product of chlorophyll. This new organic proxy not only provides the most continuous record of CO2 concentrations ever, it also breaks a record in its time span, covering half a billion years.

from Plants & Animals News -- ScienceDaily https://ift.tt/2SfwjKM
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Mysterious 'lunar swirls' point to moon's volcanic, magnetic past

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The mystery behind lunar swirls, one of the solar system's most beautiful optical anomalies, may finally be solved. The solution hints at the dynamism of the moon's ancient past as a place with volcanic activity and an internally generated magnetic field. It also challenges our picture of the moon's existing geology. from Strange & Offbeat: Fossils & Ruins News -- ScienceDaily https://ift.tt/2M4TFj0
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