He also writes for The Federalist, another biased publication: https://mediabiasfactcheck.com/the-federalist/
If you look at the destruction of natural resources world-wide, you don't have to be an expert to see that the current resource usage is unsustainable. At the same time the rich countries are unwilling to give up their status. The trend is going in the wrong direction.
The reason that folks face food scarcity is a distribution problem, not a production problem. We don't do a good job at making sure people don't go hungry, even in the US.
https://www.theguardian.com/environment/2019/sep/06/phosphat...
https://www.nationalgeographic.com/science/article/sea-runni...
https://www.siwi.org/latest/the-worlds-natural-aquifers-at-r...
https://www.nationalgeographic.com/science/article/groundwat...
https://www.idtechex.com/en/research-article/the-meat-indust...
again, overpopulation is a myth. a convenient and lazy one. but still a myth.
there are too many resources on the web explaining this.
We may produce enough calories in sugar, but stuffing the world with cheap junk food is not a solution. Total amount isn't a good metrics; total quality and availability would probably be better.
this is a myth that has been going on since the 1970s:
https://www.vox.com/the-big-idea/2017/12/12/16766872/overpop...