Talking with Chris has made me more concerned about population projections that only show the possibility of collapse as error bars. I hope to bring him and past guest Wolfgang Lutz on the podcast together to help resolve their disparate views.
I see some of humanity’s effects on the environment that could affect our population beyond what the UN projections show not as low-probability high-impact events, but already happening. I mean things like depleting aquifers or fisheries that hundreds of millions of people rely on or plastic building up in the ocean. Several major rivers don’t reach the ocean, including the Colorado, Tigris, and Euphrates. Solving these problems could be low-probability.
They’re like driving by looking only in the rear-view mirror.
Our relevant question is not, as the UN projections imply, “how do we feed ten billion?” It’s, “might human population collapse?” By implying we don’t have to worry about collapse, I see the UN discouraging acting on sustainability, in my view.