CO2 levels exceed safe limit globally. Another sign we’ve broken the biosphere.

The US National Oceanic and Atmospheric Administration (Noaa) reported that global carbon dioxide (CO2) concentrations have reached 400 parts per million – levels that haven’t been seen for about two million years! Isn’t it wonderful that a little monkey can upset nature so violently?!  We wield such power! CO2 has risen more than 120 parts …
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