Tue Mar 25 08:54:17 UTC 2025: ## Grass-Fed Beef’s Green Image Challenged by New Study

**Ciudad Juarez, Mexico – March 25, 2025** – A new study published in the *Proceedings of the National Academy of Sciences* casts doubt on the environmentally friendly reputation of grass-fed beef. Researchers found that even under the most optimistic scenarios, grass-fed beef produces no fewer planet-warming carbon emissions than conventionally raised beef.

The study, conducted by researchers including Gidon Eshel of Bard College, utilized a numerical model to simulate various industrial and grass-fed cattle herds, comparing feed consumption, methane and carbon dioxide emissions, and meat production. The results indicated that the slower growth and smaller size of grass-fed cattle negate any potential carbon sequestration benefits from grazing. This finding aligns with other research, including that of Randy Jackson at the University of Wisconsin-Madison.

While the American Grassfed Association has yet to comment, the study’s implications are significant. The researchers argue that the lower efficiency of grass-fed production outweighs any potential carbon storage benefits from grazing. They highlight the expanding global beef demand, particularly in regions like South America where deforestation contributes to increased emissions.

However, some experts acknowledge that grass-fed beef may offer advantages in animal welfare and localized environmental impacts. Jennifer Schmitt of the University of Minnesota suggests that significantly reducing overall beef consumption and freeing up cropland for other foods could alter the equation, potentially making the localized benefits of grass-fed cattle more impactful.

Despite these counterpoints, Eshel maintains that climate change should be prioritized, arguing that reducing beef consumption is crucial for environmental responsibility. He concludes that for environmentally conscious consumers, beef should not be a regular dietary habit. The study highlights the complexities of sustainable food choices and underscores the need for a more holistic assessment of environmental impacts beyond simply carbon emissions.

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