Sorry JF, I thought you were joking earlier, otherwise I wouldn't have been flippant.JereFuzz wrote:Yeah, he's kinda out there with many ideas but I've been skeptical of "overpopulation" for a while, especially when I saw that many many Latin American countries have about a 2.0 replacement rate. There are more people in China than the entirety of the Western Hemisphere. I think we're hitting a peak in the Western Hemisphere in a few decades. China and Japan are old and aren't likely to grow a whole lot in the next few decades.

The raw numbers are alarming. The world's population has doubled in the last 50 years, and we've added a billion people roughly every 12 year since 1987.
http://www.worldometers.info/world-popu ... n-by-year/
But you piqued my interest, so I did some poking around. You are right about fertility rates being down, that's a good sign. This link leads to a plot of fertility rates using World Bank data for the years 1960 through 2016, and a table that breaks the data down country by country. The plot clearly shows a decreasing trend since 1964.
https://data.worldbank.org/indicator/SP.DYN.TFRT.IN?
Also, this is an interesting read on Earth's carrying capacity. If every human on Earth became a vegetarian (so we didn't have to feed livestock), Earth's carrying capacity would be about 10 billion people.
https://www.livescience.com/16493-peopl ... pport.html
I'm still not comfortable with saying overpopulation has been "discredited". We were on the path to overpopulation, but I think people ringing the alarm bell started us to think long and hard about it and how to take actions to mitigate it. Hopefully those effects will last.