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Your Grass-fed Burger isn’t Better for the Planet

For years, ranchers and some conservationists have argued that grass-fed beef is better for the planet than conventional cattle.

But a study published [March 2025] in the Proceedings of the National Academy of Sciences challenges that idea, finding that cattle raised only on pastures do not have a smaller carbon footprint than feedlot cattle, which are quickly fattened on corn and other grains. This held even when the researchers took into account that healthy pastureland can help capture more carbon by pulling it out of the air and storing it in roots and other plant tissues.