A new report from researchers at Berkeley, Stanford, and Princeton suggests that humanity has kicked off the sixth extinction level event in our planet's history, even after using extremely conservative metrics and high background extinction rates. No matter where you start, we're killing off far more species than ever used to die 'normally' -- and the long-term impacts on our climate and planet are impossible to predict.
from ExtremeTech http://ift.tt/1GD5dmi
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