That “cow pasture/range” chunk is largely extremely low productivity scrub land owned by the federal government and leased basically for free by cattle folk. We could convert all of it to national parks without much more than a blip in food calories produced in the US.
As far as actually farmed land, productivity has increased by an order of magnitude, MUCH faster than population, so we actually farm less land than in the 40s in spite of having a much larger population that eats more. We burn that corn in our cars, for goodness sake. The land area use for ethanol corn in our country is more than enough area to convert the entire nation’s electric production to solar.
As far as actually farmed land, productivity has increased by an order of magnitude, MUCH faster than population, so we actually farm less land than in the 40s in spite of having a much larger population that eats more. We burn that corn in our cars, for goodness sake. The land area use for ethanol corn in our country is more than enough area to convert the entire nation’s electric production to solar.
Corn yields: https://extension.entm.purdue.edu/newsletters/pestandcrop/wp...