The population of the US is only 330 million. It's a net exporter of food, and Americans eat much more meat than most of the world, but even if you round up to

The population of the US is only 330 million. It's a net exporter of food, and Americans eat much more meat than most of the world, but even if you round up to the equivalent of feeding an extra billion people it looks like it's within the realm of possibility to replace all that agriculture: https://www.livescience.com/16493-people-planet-earth-support.html https://www.livescience.com/16493-people-planet-earth-suppor... And this article claims that the limiting factor is transportation infrastructure, not food production: https://www.theguardian.com/preparing-for-9-billion/2017/sep/13/population-feed-planet-2050-cold-chain-environment https://www.theguardian.com/preparing-for-9-billion/2017/sep... If that's the case then it seems like it's definitely possible. The US has good transportation infrastructure.