There was a time when oxygen almost killed all life on earth
This is a fascinating bit of history. Strange to think about how almost all life on earth was destroyed, and had things been just a little different, how earth might have turned into a lifeless ball of ice.
One Response to “There was a time when oxygen almost killed all life on earth”
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His Holiness on October 19th, 2007
Oxygen is still toxic. It’s also, you know, necessary for life. What a weird weird ball this is.