Will less than 70% of agricultural land be used for farm animals by 2030?
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Livestock occupies 80% of agricultural land but yields only 20% of global calories. Our diets significantly impact land use, especially with rising affluence, prompting concern for sustainable meat consumption. The 'HALF index' highlights the land needed for global dietary equality. Diverse land requirements across nations reveal a 14-fold difference, compelling a move towards sustainable diets observed in South Asia and Africa. High-income countries require dietary shifts, particularly in reducing beef consumption, as it has the highest land demand per gram of protein. While productivity gains can spare land, population growth and limited livestock productivity balance this.

https://ourworldindata.org/agricultural-land-by-global-diets