I am very interested in the idea of whether or not vegetarianism or veganism can work as viable and sustainable replacement for the industrial animal agriculture industry, so I was immediately drawn to this discussion. I am not personally a vegetarian, but I have thought about and looked into the benefits and reasons for adopting a vegetarian diet, both on a personal level and on a global one.
My impression for the most part has been that vegetarianism is likely to be a net boon for a lot of reasons, including lowering greenhouse gas emissions, increasing areas of biodiversity, as well as improving animal welfare. I was surprised to see some of the points made by Lauren, especially some of the numbers that were used. I read through the article that was cited, and found the claims that caught my attention, in particular the quote ”In Australia, producing wheat and other grains results in 25 times more sentient animals being killed per kilogram of useable protein, more environmental damage and animal cruelty than farming red meat.” I was able to find the paraphrased article by Mike Archer and I have to say that I did not agree with the stated methodology behind coming up with that estimate. The baseline they chose to represent typical animal agriculture was grazing cattle in Australia, which exists as a significant outlier in the animal agriculture industry.
The meat from grazing cattle only provides approximately 10% of global beef production. Goat and sheep are slightly more grazing dependent industries, providing 30% of global goat meat and mutton production. These industries are of course dwarfed by the beef industry, which produces around 70 million tons, compared to goat and sheep together, which produced 25 million tons (depending on the source). Despite the lack of production, grazing lands take up 60% of all agricultural land. The reason the use of Australian grazing bothered me so much, was because that is examining the environmental impact on land that was already been used as pasture land, as opposed to examining the impact of clearing land for either pasture or extensive animal feed monocultures. The main criticism I see is, as Lauryn pointed to, the destruction of existing biodiversity to create more farmland.
There were other significant gaps in the article’s methodology, which were noted at the bottom of the article. I quote these here.
“Editor’s note: since this article was published in 2011 its data have been disputed. A 2018 paper in the Journal of Agricultural and Environmental Ethics found this article:
-overestimated the number of mouse plagues per hectare of grain farming, and mouse poisoning deaths, per year
-claims 55 sentient animals die to produce 100kg of usable plant protein when the correct figure is 1.27 animals
-does not take into account mouse deaths on grazing land.”
These amount to the central statistical claims made by the article. That there was an estimation of the animals killed per hectare that was off by a ratio of 50-1, throws the central claim of animal agricultural to killing fewer animals than plant agriculture into doubt.
This is not to say that there aren’t situations where animal agriculture can exist in a sustainable way. I just don’t believe that it can continue to exist at the same level that it is at now, let alone continue to grow. Vegetarianism and veganism requires less land to be under the plow than modern industrial animal agriculture, with fewer greenhouse gas emissions, and more opportunity for retaining natural biodiversity. Specifically to Canada, the indigenous peoples that lived and existed here prior to European colonization (and continuing to this day) have by and large been able to consume meat in a sustainable way. There have been situations in the fur trade where specific species where hunted close to extinction, but these situations were specific to the lucrative fur trade, and not to traditional meat consumption.
I was definitely intrigued by the idea that grazing on pastureland can have some advantages, such as the opportunity to use land that is too poor to grow other crops on it, but unfortunately, as highlighted above, is that grazing produces a very small amount of beef and mutton consumed, and that is not even considering the fact that grazing chickens and pigs are even rarer than grazing cattle. The fact that such a low amount of production takes up 60% of current agricultural land, is another problem with grazing, its inefficiency with respect to land use, even if much of that land is not capable of being cultivated for any other crop.
Overall, I still think it’s clear that global meat production needs to be scaled down, and that having a larger percentage of our diets be plant based would improve our environmental conditions, as well as improve animal welfare.
I really enjoyed this conversation, and I’m glad we got to reexamine some preconceptions.
Springmann, Marco, et al. “Health and Nutritional Aspects of Sustainable Diet Strategies and Their Association with Environmental Impacts: A Global Modelling Analysis with Country-Level Detail.” The Lancet Planetary Health, vol. 2, no. 10, Oct. 2018, https://doi.org/10.1016/s2542-5196(18)30206-7.
Livestock and the Environment: Meeting the Challenge, Food and Agricultural Organization of the United Nations, https://www.fao.org/3/x5304e/x5304e00.htm#Contents.
https://www.statista.com/statistics/237632/production-of-meat-worldwide-since-1990/
https://www.tridge.com/intelligences/mutton/production
https://www.tuskegee.edu/Content/Uploads/Tuskegee/files/CAENS/Caprine/US%20Goat%20Industry%20Assessment.pdf
Archer, Mike. “Ordering the Vegetarian Meal? There's More Animal Blood on Your Hands.” The Conversation, 15 Dec. 2011, https://theconversation.com/ordering-the-vegetarian-meal-theres-more-animal-blood-on-your-hands-4659.