Researchers Find Origin Of “Breathable” Atmosphere Half A Billion Years Ago
Nov 18th 2007Drug InformationWater - Air Quality / Agriculture
Ohio State University geologists and their colleagues have uncovered evidence of when Earth may have first supported an oxygen-rich atmosphere similar to the one we breathe today. The study suggests that upheavals in the earth’s crust initiated a kind of reverse-greenhouse effect 500 million years ago that cooled the world’s oceans, spawned giant plankton blooms, and sent a burst of oxygen into the atmosphere. [click link for full article]
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