Sentences to ponder

We find that standard population growth projections imply larger reductions in [per capita] income than even the most extreme widely-adopted climate change scenario.

Note these results are referring to population growth, not shrinkage.  Of course those of you who remember Paul Ehrlich and his “population bomb” campaign may be skeptical.  Still, if you think there are countries or regions that are just not going to grow much in absolute terms, exactly why is this wrong?  Ehrlich was clearly wrong about countries that were set to grow — is that everyone?

Should per capita or total income be the standard here?

That sentence is from a macroeconomics paper, here is more, via Robin Hanson.