The dairy industry is a major contributor to climate change and environmental destruction, with one liter of cow’s milk requiring more than 22 times more water and roughly 12 times more land, and emitting three times more CO2 emissions than one liter of soy milk.
The dairy industry is a major contributor to climate change and
environmental destruction, with one liter of cow’s milk requiring more than
22 times more water and roughly 12 times more land, and emitting three times
more CO2 emissions than one liter of soy milk. (1)
This eco-impact chart doesn't even factor in methane emissions, which
matter— a lot— because methane is a far more potent greenhouse gas than CO2;
it traps significantly more heat. Over a 100 year time frame, methane is
20-25 times stronger than CO2, and over a 20-year time-frame, it is 72-84
times stronger. (2)
A recent study from the Joint Global Change Research Institute found that
methane emissions from farmed animals are 11 percent higher than previously
calculated. The researchers state that the concentration of methane in the
atmosphere increased 10 times more quickly in the last decade than in the
decade prior. “This change is due to a number of factors including an 8.4
percent increase in methane emissions from the dairy industry."
The researchers also note a 37% increase in emissions due to changes in
manure management, including the use of anaerobic manure lagoons. Manure
from cattle releases substantial quantities of methane into the atmosphere,
such that the EPA classifies “manure management” as a separate category of
methane emissions. (3)
Another nasty by-product of cow manure is nitrous oxide, a climate-warming
pollutant 298 times more powerful than carbon dioxide. (4)
The dirtiest dairy offender is cheese: it takes 10 lbs. of milk to produce
just one lb. of cheese, making cheese the third worst food for climate after
beef and lamb. (5)
If you care about the planet, turn over a new leaf and choose plant-based
milks, cheeses, yogurts, and more. Adopting a plant-based diet is one of the
single most important actions you can take to help the climate and
environment, and of course the animals.
What about organic, pastured, grass-fed, etc? Even worse for climate and
environment in terms of methane emissions, land use, biodiversity and
habitat loss, and more. See
Slaughter-Free Dairy Is Being Hailed As The Future of ‘Humane’ Dairy. Here’s
Why It Isn’t
See also "Avoiding Meat & Dairy Single Biggest Way to Reduce Your Impact on
Earth," which summarizes the largest and most comprehensive study ever
conducted of the environmental impacts of different forms of farming,
including so-called "sustainable" forms of animal farming:
Avoiding meat and dairy is ‘single biggest way’ to reduce your impact on
Earth
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