Animal-based diets play a major role in climate change and in the mass die-off of species. Animal products provide the common denominator.
It is becoming clear that we are facing an imminent climate catastrophe. The
United Nations says that we’ve got about 12 years left to avert that
catastrophe which, in case you haven’t noticed, is already rearing its ugly
and deadly head.
It is time for the Green Party, Extinction Rebellion, and anyone else
concerned about averting that catastrophe (shouldn’t that be everyone?) to
stop ignoring the elephant in the room: a massive transition to a vegan diet
is necessary for us to survive.
Let me say upfront that I have been a vegan for 36 years because I believe
that we cannot justify exploiting animals for food, clothing, or other
reasons. So I believe that veganism is necessary for moral purposes. In this
essay, I want to argue that a vegan diet is necessary for ecological reasons
as well.
We have known for a while that animal agriculture is ecologically very
unsound. There is no question that animal foods represent an inefficient use
of plant protein in that animals have to consume many pounds of grain or
forage to produce one pound of meat. For example, in 2003, Cornell
University Professors David Pimentel and Marcia Pimentel showed that it
takes 13 kilograms (a kilogram is 2.2 pounds) of grain and 30 kilograms of
forage to produce one kilogram of beef; 21 kilograms of grain and 30
kilograms of forage to produce a kilogram of lamb; 5.9 kilograms of grain to
produce a kilogram of pork; 3.8 kilograms of grain to produce a kilogram of
turkey; 2.3 kilograms of grain to produce a kilogram of chicken, and 11
kilograms of grain to produce one kilogram of eggs. Livestock in the United
States consume 7 times as much grain as is consumed by the entire U.S. human
population and the grains fed to U.S. livestock could feed 840 million
humans who had a plant-based diet.
Likewise, animal agriculture involves an inefficient use of water. The
Pimentel study states that one kilogram of animal protein requires about 100
times more water than does 1 kilogram of grain protein. According to
another, more recent study, one kilogram of beef requires 15,415 liters of
water (a gallon is 3.78 liters); sheep meat (lamb and mutton) 10,412 liters;
pork 5,988 liters; and chicken 4,325 liters. A kilogram of apples requires
822 liters of water; bananas 790 liters; cabbage 237 liters; tomatoes 214
liters; potatoes 287 liters; and rice 2,497 liters. Most estimates vary
between 1,000 to 2,000 gallons of water needed to produce a gallon of milk.
A recent study from researchers at the University of Oxford concluded that
avoiding meat and dairy is the most effective way to reduce our inflicting
harm on the earth. According to an article in The Guardian about this
research:
“A vegan diet is probably the single biggest way to reduce your impact on
planet Earth, not just greenhouse gases, but global acidification,
eutrophication, land use and water use,” said Joseph Poore, at the
University of Oxford, UK, who led the research. “It is far bigger than
cutting down on your flights or buying an electric car,” he said, as these
only cut greenhouse gas emissions.
If I had a penny for every environmentalist who told me that they weren’t
vegan but they did not fly, or they had an electric car, I’d have tons of
pennies.
One would think that, in light of all of this, serious environmentalists
would be campaigning for everyone to adopt a vegan diet. One would be
mistaken. The environmental movement has not promoted veganism. It has,
instead, focused attention on factory farms and has promoted a whole new
industry of “sustainable,” “local,” and “free-range” products.
Factory farms are, indeed, an environmental nightmare for a number of
reasons. But the “sustainability” approach is nonsense. Putting aside that
the animals who are killed for human consumption might regard
“sustainability” in a jaundiced way, from an ecological point of view, it
solves nothing. “Sustainable” grazing animals may consume less grain but
they drink more water because they are more active; they still produce
methane gas; and they require more grazing land. Locally produced animal
products have a much greater environmental impact than plants that have been
grown somewhere else. According to a study in Environmental Science and
Technology, transportation accounts for only 11% of the carbon footprint of
food with 83% attributable to production. So the idea that you’re doing more
for the environment by eating animal products produced locally than
vegetables transported in is just wrong.
In sum: “sustainable” animal agriculture will not — cannot — save the
planet.
The environmental movement also supports a “reducetarian” approach.
Greenpeace calls for a 50% reduction of meat and dairy by 2050. Sorry —
that’s way too little way too late.
The UK Green Party states: “A reduction in the consumption of animal
products would have benefits for the environment, human health and animal
welfare. The Green Party will support a progressive transition from diets
dominated by meat and other animal products to healthier diets based on
plant foods, through the use of research, education and economic measures,
coupled with support for more sustainable methods of production such as
organic and stockfree farming.”
A reducetarian approach will not be sufficient. Any reduction that is going
to be meaningful from an environmental perspective is going to have to be
“huge” and represent something much more approximating complete elimination.
That is, “Meatless Monday,” “Vegan Before 6,” and a general and vague
“reducetarian” directive are not going to cut it. The idea that “every
little bit less consumption is a good thing” might be a plausible way of
looking things if we had another 100 years to address the problem of global
warming. We don’t. And preliminary data suggest that reducetarians do not
seem to reduce too much.
Some claim that we can couple reduction with other technologies so as to
avoid the necessity of going vegan. Yes, we might couple significant
reduction of consumption with other technologies but, again, we simply don’t
have the time to develop those technologies and even if all of the
technologies are available now, we do not have the time to work out what
combinations of strategies will work, and what numbers of people are
required to participate in what strategies to achieve what could be achieved
if there was a massive shift to a vegan diet.
Moreover, even if a severe reduction in consumption were to be sufficient,
we know that not everyone will participate in that severe reduction.
Therefore, those of us who completely eliminate animal products are helping
to deal with the deficit caused by the non-participation of others in that
severe reduction.
How about those radical Extinction Rebellion folks? They’re willing to get
arrested for the planet. Surely, they’re willing to go vegan and to promote
veganism? Apparently not. I went to the Extinction Rebellion website and
spent about 30 minutes reading it. I found much of it pretty vague in terms
of what concrete things it is advocating that people do other to attend ER
events and to make demands of government to be transparent about climate
change, act to deal with carbon emissions, and provide citizen oversight.
Forgive me, but I am a tad skeptical that these laudable political goals are
going to be recognized much less achieve success in the near future and
certainly not in time to avert catastrophe. I found nothing on the ER
website about the necessity of veganism. Indeed, I was unable to find any
mention of veganism on the site.
I have seen comments from ER people to the effect that ER is deliberately
not focusing on individual action but only on collective demands directed
toward the government. This reflects the “personal/political” distinction
that I thought we all recognized as illusionary a few decades back.
Apparently not. The personal is the political. The idea that we don’t see as
relevant our own obligation to do the most effective thing that we can do as
individuals because that supposedly isn’t political is beyond absurd, and is
a transparent way to let ourselves off the hook while we go out and have a
good time at a demonstration or student strike. Moreover, even if we assume
that the government will respond favorably and will do so before it’s too
late, it makes no sense to say that we should pursue a strategy that has a
very small chance of prevailing while ignoring a strategy that could work if
we aggressively an unequivocally promoted it. Unfortunately, ER appears to
be more about appearing to be radical than being radical.
I have also seen comments from some prominent ER people to the effect that
ER does not want to judge anyone’s lifestyle or tell people what to do. But
that makes no sense. It’s analogous to a doctor saying that the doctor isn’t
willing to tell you to stop smoking because the doctor does not want to
judge your lifestyle or tell you what to do. It’s not a matter of making
judgments or giving normative directives. It is a matter of what one ought
to do if one wants to maximize the chances of surviving.
The bottom line is clear: we are facing imminent disaster. Adopting a vegan
diet is the one thing we can do right now. It does not involve any
technological innovation. It does not involve any legislation or government
regulation. If we really want to save the planet from climate catastrophe,
we must promote a grassroots effort with a clear normative directive: stop
eating animal products and adopt a vegan diet.
We need to see adoption of a vegan diet as necessary. It may not be
sufficient — we may have to do other things to reduce our impact on the
planet, but adopting a vegan diet is, as a practical matter, necessary given
the imminence of disaster. Will those who adopt a vegan diet for ecological
reasons “cheat”? Yes, probably. But from an environmental point of view,
consuming animal products ought to be considered as something that one does,
if at all, as “cheating,” rather than patting oneself on the back because
one has consumed just dairy, eggs, and fish on Meatless Monday.
I am not saying that we ought not to engage in political action as well as
promote a grassroots vegan movement. I am, however, skeptical to the point
of incredulity that government will provide a timely solution. Government
will act, if at all, only when it’s too late. I do think that political
action has a symbolic value and it helps to educate people, but it is clear
that an environmental movement that raises the alarm about global warming
and does not aggressively and unequivocally promote a vegan diet is just
engaging in hollow rhetoric and grandstanding. Animal-based diets play a
major role in climate change and in the mass die-off of species. Animal
products provide the common denominator. To not promote a vegan diet as the
central focus of environmental activism makes no sense whatsoever.
The time is short. The consequences are catastrophic. We need to act. Now.
This essay was originally posted on Medium on 28 February, 2019.
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