According to Paul MacCready (see the video linked below) humans, livestock, and pets make up 98% of the mass of all land and air vertebrates. The other 2% of the mass is wild vertebrates. That's a crazy statistic. Ten thousand years ago we made up less than 1/10th % of the same group. I think this ignores sea life, but we don't live in the ocean anyway. How many people can earth sustain? What will the quality of life be for those people? How many tragedies will it take to reach equilibrium; or will... read more
