> Based on some rough napkin calculations, the caloric efficiency by land of broccoli is about the same as industrial meat.
Not even close. Did you forget to consider the inputs into meat?
If you want to check against someone else's math, here's a paper that claims we can increase global calorie availability by 70% by shifting crops grown for animal feed (40% of crops in USA btw) to crops grown for human consumption: https://iopscience.iop.org/article/10.1088/1748-9326/8/3/034...
I did include the inputs, with the assumption of high efficiency feed for industrial meat production, i.e. a feed conversion rate of about 6.
This paper is about shifting animal corn to human corn, not about shifting animal corn to broccoli. Corn produces about 6 times as many calories per hectare as broccoli.
Not even close. Did you forget to consider the inputs into meat?
If you want to check against someone else's math, here's a paper that claims we can increase global calorie availability by 70% by shifting crops grown for animal feed (40% of crops in USA btw) to crops grown for human consumption: https://iopscience.iop.org/article/10.1088/1748-9326/8/3/034...