But I am cynical and don't believe that people will do what is required. The reasons include […] ignorance, — Agree to Disagree
methane emissions do NOT accumulate].

A constant number of cows produces a constant amount of methane each year. Because methane has a finite lifetime (about 12 years) this means that the total amount of methane in the atmosphere from cows is constant. — Agree to Disagree
The 2022 methane increase was 14.0 ppb, the fourth-largest annual increase recorded since NOAA's systematic measurements began in 1983, and follows record …
Biogenic carbon (e.g. CO2 and methane) does not make global warming worse. — Agree to Disagree
This is why we should be making major efforts to reduce non-biogenic carbon (this will be effective), — Agree to Disagree
One tries to engage, but eventually one reaches the outer limits of denialism. 12 years too short, 12 million years too long, but if you look at it just so - no worries. Have a great death! — unenlightened
Or do you still have something stupid to say? — Mikie
Are you saying that young people (with little life experience) usually have more intelligence, wisdom, and knowledge than older people? — Agree to Disagree
Just to be clear, it is important to reduce all sources of greenhouse gas emissions - oil, coal, natural gas, etc. But that does not mean that we should ignore a cattle farming as a significant source when there are solutions. These are not mutually exclusive. — EricH
They have been saying that we only have 10 years left for the past 40 years. — Agree to Disagree
Part of the reason for this is that people don't understand the real situation and are concentrating on the wrong solutions. — Agree to Disagree
In short, livestock production appears to contribute about 11%–17% of global greenhouse gas emissions, when using the most recent GWP-100 values, though there remains great uncertainty in much of the underlying data such as methane emissions from enteric fermentation, CO2 emissions from grazing land, or land-use change caused by animal agriculture.
1. How does beef production cause greenhouse gas emissions?
The short answer: Through the agricultural production process and through land-use change.
The longer explanation: Cows and other ruminant animals (like goats and sheep) emit methane, a potent greenhouse gas, as they digest grasses and plants. This process is called “enteric fermentation,” and it’s the origin of cows’ burps. Methane is also emitted from manure. Additionally, nitrous oxide, another powerful greenhouse gas, is emitted from ruminant wastes on pastures and chemical fertilizers used on crops produced for cattle feed.
More indirectly but also importantly, rising beef production requires increasing quantities of land. New pastureland is often created by cutting down trees, which releases carbon dioxide stored in forests.
In 2017, the U.N. Food and Agriculture Organization (FAO) estimated that total annual emissions from beef production, including agricultural production emissions plus land-use change, were about 3 billion tonnes of carbon dioxide equivalent in 2010. That means emissions from beef production in 2010 were roughly on par with those of India, and about 7% of total global greenhouse gas emissions that year. Because FAO only modestly accounted for land-use-change emissions, this is a conservative estimate.
Global demand for beef and other ruminant meats continues to grow, rising by 25% between 2000 and 2019. During the first two decades of this century, pastureland expansion was the leading direct driver of deforestation. Continued demand growth will put pressure on forests, biodiversity and the climate. Even after accounting for improvements in beef production efficiency, pastureland could expand by an estimated 400 million hectares, an area of land larger than the size of India, between 2010 and 2050. The resulting deforestation could increase global emissions enough to put the global goal of limiting temperature rise to 1.5-2 degrees C (2.7-3.6 degrees F) out of reach.
At COP26, global leaders pledged to reduce methane emissions by 30% and end deforestation by 2030. Addressing beef-related emissions could help countries meet both pledges.
3. Why are some people saying beef production is only a small contributor to emissions?
The short answer: Such estimates commonly leave out land-use impacts, such as cutting down forests to establish new pastureland.
The longer explanation: There are a lot of statistics out there that account for emissions from beef production, but not from associated land-use change. For example, here are three common U.S. estimates:
The U.S. Environmental Protection Agency estimated total U.S. agricultural emissions in 2019 at only 10% of total U.S. emissions.
A 2019 study in Agricultural Systems estimated emissions from beef production at only 3% of total U.S. emissions.
A 2017 study published in the Proceedings of the National Academy of Sciences estimated that removing all animals from U.S. agriculture would reduce U.S. emissions by only 3%.
While all of these estimates account for emissions from U.S. agricultural production, they leave out a crucial element: emissions associated with devoting land to agriculture. An acre of land devoted to food production is often an acre that could store far more carbon if allowed to grow forest or its native vegetation. And when considering the emissions associated with domestic beef production, estimates must look beyond national borders, especially since global beef demand is on the rise.
Because food is a global commodity, what is consumed in one country can drive land use impacts and emissions in another. An increase in U.S. beef consumption, for example, can result in deforestation to make way for pastureland in Latin America. Conversely, a decrease in U.S. beef consumption can avoid deforestation and land-use-change emissions abroad. As another example, U.S. beef exports to China have been growing rapidly since 2020.
When the land-use effects of beef production are accounted for, the GHG impacts associated with the average American-style diet actually comes close to per capita U.S. energy-related emissions. A related analysis found that the average European’s diet-related emissions, when accounting for land-use impacts, are similar to the per capita emissions typically assigned to each European’s consumption of all goods and services, including energy.
whether these emissions are actually a problem. — Agree to Disagree
You obviously haven't read it because it is about emissions from livestock — Agree to Disagree
if livestock numbers stay the same, eventually (in about 12 years), the methane produced by livestock will not contribute additional global warming.
What don't you like about these 2 sources? — Agree to Disagree
Emissions from livestock production are expected to continue rising as the global population nears 10 billion by midcentury and diets shift to incorporate more meat. (Consumption of meat from ruminant animals like cattle is expected to increase by about 90% by 2050.) If current trends for food demand and production continue, emissions from the food system alone would likely push global warming beyond 1.5° C, even if all non-food system emissions were immediately eliminated. Consumption of dairy and meat, particularly from cattle, is expected to account for over half of future warming associated with the food system, with emissions from meat production alone contributing 0.2–0.44°C of warming by the end of the century.
The carbon in fossil fuels accumulated over a long time and has been locked away from the atmosphere for a long time. — Agree to Disagree
Which points can you prove are wrong? — Agree to Disagree
It is fossil fuels that are the problem. NOT cows. — Agree to Disagree
Point out the fault in this logic:
- Atoms of carbon in the atmosphere are taken up by plants.
- Cows eat the plants.
- The cows release the atoms of carbon back into the atmosphere. — Agree to Disagree
Go ask 100 people in Walmart; some of them will say that oil came from dead dinosaurs. — BC
I asked Google whether coal is a rock or not and got two answers — BC
Coal and oil can be called fossils, but in fact the original tissues of the organisms are present, albeit transformed. — BC
Mr. Huntsman first began to entertain doubts about climate orthodoxy in the years after he saw Al Gore’s 2006 documentary, “An Inconvenient Truth.” “His story was so well laid out, so precise,” Mr. Huntsman says. “At certain times, certain events would happen, certain measurements would be reached.” They didn’t and weren’t. [Actually, they have.]
It wasn’t a sudden “Aha” moment, he says, but he began to think about other dire predictions that had people panicked not long ago. “In the ’70s [here it comes…] we were going into an ice age. Then we went to acid rain—in six or seven years that was going to destroy all the oak trees and pine trees, and New England would be this deforested area. Then the ozone was going to disappear. And then we got to global warming, and we were all going to fry to death.”
It is fossil fuels that are the problem. NOT cows. — Agree to Disagree
Point out the fault in this logic:
- Atoms of carbon in the atmosphere are taken up by plants.
- Cows eat the plants.
- The cows release the atoms of carbon back into the atmosphere. — Agree to Disagree
When are people going to realize that industry and governments will not do anything significant unless forced to do so by the people? — Janus
It is a cycle. There is no overall gain or loss of carbon atoms in the atmosphere due to cows. — Agree to Disagree
