George Wuerthner,
The Greanville Post
May 2017
Most environmental/conservation groups are Climate Change deniers. While most organizations are calling climate change the environmental issue of our time, they avoid discussing the contribution of animal agriculture in climate change. It is one of those topics that is avoided in many climate change discussions. We hear about the need to reduce fossil fuels and switch to renewable energy. We are encouraged to drive more efficient vehicles or insulate our homes. We are told to turn down the thermostat in winter.
Most environmental/conservation groups are Climate Change deniers. Specifically, I am talking about the numerous organizations that give lip service to the threat posed by climate change, but don’t even mention to their membership the contribution that livestock production has with regards to rising global temperatures. While most organizations are calling climate change the environmental issue of our time, they avoid discussing the contribution of animal agriculture in climate change.
It is one of those topics that is avoided in any climate change discussions. We hear about the need to reduce fossil fuels and switch to renewable energy. We are encouraged to drive more efficient vehicles or insulate our homes. We are told to turn down the thermostat in winter.
The wheels of business are implacable and totally lacking in compassion.
This is a downed cow, being dragged to slaughter. Happy burgers! (Farm
Sanctuary, flickr)
Not that these ideas aren’t worthy of action. However, the single easiest
and most effective way to reduce one’s personal contribution to global
warming is to change one’s diet. Consumption of meat and dairy is one of the
biggest contributors to Green House Gas Emissions (GHG) but few
organizations are willing to even discuss this problem, much less advocate
for a diet change.
Indeed, many groups advocate and promote ranching and animal farming,
especially if it’s “local” as if locally produced GHG emissions are better
than ones produced far away.
Here’s the problem. Livestock, particularly, cows and other “rumen” animals
have bacteria in their guts that assist in the breakdown of grass and other
forage. A by-product of this biological decomposition is methane.
Methane is a potent greenhouse gas and is far more effective at trapping
heat than CO2. So, it takes a lot less methane to have a disproportional
effect on rising temperature. Methane breaks down over time to CO2, but
initially, its ability to trap heat is 100 times more efficient than C02.
This is an important nuance because the time factor affects how you view methane. If you use a 100-year timeline, the ability of methane to trap heat is only approximately 20 times greater than C02 (because much of the methane has been converted to CO2), but if you use a 20-year horizon which is far more meaningful in our current situation, then methane is far more powerful and destructive.
The author’s exposé of a rarely discussed issue -
Welfare Ranching: The Subsidized Destruction of the American West
Any number of recent studies have shown that livestock contributes
anywhere from 14.5 percent of global GHG emissions (in a UN Food and
Agriculture Organization report) up to a World Watch assessment that
includes more of the collateral impacts of livestock production estimates
that as much as 51% of all GHG emissions are the result of livestock
production.
And worse for the environment, many organizations promote “grass fed” beef
and dairy as if that somehow negates the environmental impacts of livestock.
Ironically, because consumption of grass and other “free range” forage is
more difficult for rumen bacteria than converting higher quality forage like
corn, silage, or soy into energy, grass-fed beef/dairy cows emit more
methane over their lives than CAFO (Confined Animal Feeding Operations)
produced beef/dairy.
This is not an endorsement of CAFOs, rather it demonstrates that meat/dairy
consumption no matter what the source may be, is counter-productive if your
goal is to reduce GHG emissions.
Either way what these studies suggest is that eating less beef and dairy is
one of the dietary changes that anyone can implement to reduce the personal
contribution to climate change. But most environmental organizations while
they might be willing to fund campaigns like “keep it on the ground” or
advocate for solar panels, refuse to discuss how a meat and dairy diet is
destroying the global climate.
Another new study by researchers at Loma Linda University and elsewhere,
have concluded that if Americans would eat beans instead of beef, the United
States would immediately realize approximately 50 to 75 percent of its GHG
reduction targets for the year 2020!
Even better a change in diet would free up a substantial amount of
agricultural land for restoration to native vegetation. Nothing destroys
more biodiversity than growing crops (for livestock feed) and grazing
livestock. Since livestock is an inefficient way of converting solar energy
into food, substituting beans for beef would free up 42 percent of U.S.
cropland currently under cultivation — a total of 1.65 million square
kilometers or more than 400 million square acres, which is approximately 1.6
times the size of the state of California.
Of course, the problem of livestock goes beyond climate change. There are
the associated impacts resulting from livestock production. The annual
dewatering of western rivers to provide forage (hay, etc.) for cows. The
pollution of water from manure. The trampling of soils and riparian areas by
cattle hooves. The removal of forage that would otherwise support native
wildlife. The killing of predators like wolves, coyotes, and bears to
protect domestic animals. The litany of ecological impacts associated with
livestock production is long and significant.
Despite the obvious benefits of a change in diet, we have many organizations
promoting “sustainable” ranching, predator friendly ranching,” local” dairy
farms/ranches or promoting ranching to discourage subdivisions (the condos
vs cows debate) while ignoring the much larger problem associated with
livestock production. Many “health food” store promote “grass-fed” beef and
dairy as if consumption is somehow environmentally beneficial.
It’s time for environmental/conservation groups to stop being climate
deniers and begin to advocate for a change in our diets to help combat
global climate change. One cannot be serious about climate change and still
be a significant consumer of dairy and meat products.
George Wuerthner has published 36 books including Wildfire: A Century of Failed Forest Policy. He serves on the board of the Western Watersheds Project.
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