Grass-Fed Beef Means Much More Methane
Harvard Study Finds Shift to Grass-Fed Beef Would Require 30% More Cattle and Increase Beef's Methane Emissions 43% A Harvard report published July 2018 in the journal Environmental Research Letters found that shifting U.S. beef production to exclusively grass-fed, pastured systems would require 30% more cattle just to keep up with current demand and production levels, and that the average methane footprint per unit of beef produced would increase by 43% due to the slower growth rates and higher methane conversion rates of grass-fed cattle. This would increase the U.S.'s...