Model suggests that switching to microbial ‘meat’ can cut carbon emissions.
Beef farming is a top driver of deforestation worldwide, and cattle raised for beef are a major source of methane, a more potent greenhouse gas than carbon dioxide. Replacing beef with meat alternatives could reduce some of the food production’s environmental footprint, but it won’t solve the climate crisis, says study lead author Florian Humpenöder, a sustainability scientist at the Potsdam Institute for Climate Impact Research in Germany.
The team used a mathematical model that considered increases in population growth, income and livestock demand between 2020 and 2050. Under a business-as-usual scenario, the global increase in beef consumption would require the expansion of pasture areas for grazing and of cropland for feed production, which would double the annual rate of deforestation globally. Methane emissions and agricultural water use would also increase.
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