Most is currently used to grow plants to feed animals
for its favourite meat, pork, appears to have peaked; beef is becoming more popular. India, which eats very little beef, is drinking more milk. Africa, with its fast-growing population, will demand more meat in future. Already, of all habitable land, half is used for agriculture, according to the UN Food and Agricultural Organisation.
If everyone were vegan, agriculture would need just a quarter of the land it uses today. Even a diet avoiding only meat from cattle and sheep would. What might that surplus space be used for? Quadrupling food production is not a viable option. Some current pastureland, for example in the Scottish highlands, could not be converted to high-yield cropland.
Some may worry about the cultural impact. Eliminating meat production would change landscapes, ways of life and relationships with animals and food shaped over millennia—and parts of economies linked to them, including tourism. But such concerns do not apply as readily to land cleared to produce ever more burgers to be consumed thousands of miles away. A wholescale shift to veganism is unlikely. But these models suggest a little more “veganuary” spirit all year round would be a good thing.
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