"A report from Science News (via Food Times) argues that beef produces 19 kilograms of CO2 for every kilogram served; that grass-fed beef is worse — yes, worse — for global warming than feed-lot beef; and that for every percentage reduction we make in meat consumption we’ll see a corresponding reduction in its contribution to global warming."From that Science News article he linked:
- Mark Bittman, Meat and Global Warming
"[Green house gas emissions are] roughly on the order of 50 percent higher in grass-finished systems."I learn something every day.
"The reason: "It's related to the much higher volumes of feed throughput and associated methane and nitrous-oxide emissions." He added that most pastures were highly managed, and subject to "periodic renovations and also fertilization." Finally, with grass-fed cattle "there is also a high [grass] trampling rate. So the actual land area that you need to maintain magnifies that difference."
- The Carbon Footprints Of Raising Livestock For Food, Science News, Feb 15