I can't find the part where he had said [something to the effect of] agriculture in Africa won't see nearly as much of a decline (e.g., in percentage terms) because in Africa farming techniques generally are not using the same methods as in other areas where there is a higher reliance on farm equipment and fertilizers.

KenyaCoin

bitcoin

Peter Zeihan: "Over the next few years, we're probably going to lose a billion people from famine."

Here's another segment on Agriculture:

"[Before 1945, ...,] either you had the oil, and so you had an empire and colonies, or you did not, and you were a colony." 

https://www.youtube.com/watch?v=qWyhKobyM68&t=6282s