> A number of past studies have found lower greenhouse gas emissions associated with the feedlot system. One reason is that grass-fed cows gain weight more slow

> A number of past studies have found lower greenhouse gas emissions associated with the feedlot system. One reason is that grass-fed cows gain weight more slowly, so they produce more methane (mostly in the form of belches) over their longer lifespans. https://www.npr.org/sections/thesalt/2019/08/13/746576239/is-grass-fed-beef-really-better-for-the-planet-heres-the-science https://www.npr.org/sections/thesalt/2019/08/13/746576239/is...