Tulane professor Diego Rose talks about climate change and the American diet: 'Even if you if you looked at the least impactful beef that's raised — and all beef was raised in that way — we'd still have to cut our consumption in half to be sustainable.'
, published in the American Journal of Clinical Nutrition in 2022, found that swapping one serving of beef for chicken each day would lower a person’s dietary carbon footprint by 48%.Your research focuses on individual people and actual diets — where do you get data like that?. They ask individuals to recall everything they ate in the last 24 hours. It's just a snapshot — it's a random day in the in the eating life of a sample of Americans.
This had been done by the Environmental Protection Agency. They were particularly interested in being able to translate what Americans ate into commodities because they were regulating the use of pesticides. So, they wanted to be able to estimate how much pesticide exposure individuals would have through diet. The only way to do that would be to be able to translate those as-consumed foods into commodity recipes.
It's an easy thing to recommend because you don't have to become a vegetarian to have a big impact. If you've been eating beef a lot and you can just cut back on how much you're eating, that would make a big impact.
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