How much land is needed per 1 gram of protein?

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info about land use and food production

How much land is needed per 1 gram of protein (by food type)? Global land use would drop 75% if everyone went vegan!

The vast amount of land used for meat production poses multiple issues for the planet. One-third of the Earth is desertified and livestock is the leading contributor. Livestock and feed crops are also the leading driver of rainforest destruction. 136 million acres of rainforest have been cleared for animal agriculture.

[Clark & Tilman (2017). Comparative analysis of environmental impacts of agricultural production systems, agricultural input efficiency, and food choice. Environmental Research Letters, Volume 12, Number 6.]

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