Isn't corn production massively subsidized in the US? So it becomes cheaper to feed cattle with corn instead of grazing. Madness.
That type of meat production is not something I support.
http://www.worldstopexports.com/top-beef-exporting-countries...
Interestingly, the #1 exporter, Australia, has historically used a mix of grazing and feed grains. But they're expecting to grow more feed grains because grazing suffers during droughts, which are increasingly common. Apparently those grains are wheat and barley; corn is definitely an American obsession. I assume that will be grown on land that could otherwise be used to grow food for humans.
https://www.beefcentral.com/lotfeeding/grain-sector-faces-ne...