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For some perspective, 800 million acres is about 1.25 million square miles, or approximately 1/3 of the land area of the forty eight contiguous states. 900 mil

For some perspective, 800 million acres is about 1.25 million square miles, or approximately 1/3 of the land area of the forty eight contiguous states. 900 million acres is approximately the amount of agricultural land in the US. If this estimate were true and would provide meat for the entire world, I think we'd be okay spacewise.

paulryanrogers 4y ago
That doesn't account for the byproducts, assumes ideal efficiency, and puts a huge squeeze on other agriculture. Then there are resources consumed by transportation, refrigeration, spoilage, etc. As we search out the threshold of unsustainable living maybe we could tap the breaks a bit first? Earth is a nearly closed system we must all share, and cows are a terribly inefficient way to produce protein and calories.