Source for only enough food to feed 4 billion people?

[tsire]

Im in a debate about GE and organic farming, and I know Norman Borlaug claims that if we completely went to organic and without GE farming, we would only be able to feed 4 billion people in the world. Does anyone know if this is sourced somewhere else? Or is this simply a claim he makes?

[Tsukasa Buddha]

It might be from the claim that he saved a billion lives by helping people in developing countries with GE foods.

However, if that is the case, then it really isn't an accurate claim.

[KingMerv00]

Maybe modern food production increases output by a certain percent? We know roughly how much food is grown today. Multiply that by the percent and maybe it would feed only 4 billion people. Total guess.

That isn't to say 2 billion would starve. Obviously more land would be used for farms to try and compensate for that problem in that alternate universe..