Western states and the federal government face a looming 2026 deadline to divvy up falling water levels in the Colorado River basin. As overuse and climate change stretch the river thin, research suggests relatively small shifts in global eating patterns could save enough water to fend off steeper cuts for cities and agriculture — and help reduce climate pollution.

Nearly half — 46% — of all the water drawn from the Colorado River goes to growing feed for beef and dairy cows, according to a recent study published in the journal Communications Earth & Environment. It’s the most detailed analysis yet of how the river’s water is used.