It corrects a statement by the UN that made cattle a primary cause of global warming. UC Davis professor Frank Mitloehner says that cows do not produce anywhere near the 18 per cent of greenhouse gases the UN claimed; the figure is more like 3 per cent or less.
According to a news release from UC Davis, Mitloehner traces much of the public confusion over meat and milk’s role in climate change to two sentences in the summary of a 2006 United Nations report, titled “Livestock’s Long Shadow.” Printed only in the report’s executive summary and nowhere in the body of the report, the sentences read: “The livestock sector is a major player, responsible for 18 percent of greenhouse gas emissions…”
The truth is, in the U.S., raising cattle and pigs for food accounts for about 3 percent of all greenhouse gas emissions, while transportation creates 26 percent.
Over the last century, Increased efficiency in milk production has greatly reduced the carbon footprint of the cattle industry. In the 1940s there were 25 million dairy cattle in the US, today there are 9 million. These 9 million cows produce 60 per cent more milk that those 25 million did in the 1940’s.
In developing countries, livestock would probably be a higher-percentage source of greenhouse gases due to inefficient livestock management, deforestation, and other factors, such as their smaller transportation and energy sectors.
You know, I think most of us in the Ag community were always puzzled by that 18 per cent number the UN put out; it just didn’t make sense. I’m glad someone finally did the research to blow that number out of the water. They demonized an entire industry and made monkeys out of a lot of well-intentioned people who are still advocating for ‘meatless mondays’ to reduce beef production.
According to professor Mitloehner, “The developed world’s efforts should focus not on reducing meat and milk consumption, but rather on increasing efficient meat production in developing countries, where growing populations need more nutritious food.”
I’m Len Wilcox and that’s the Western View from AgNet West.