I heard something to do with Nitrogen and …cow farts(?) I am really unsure of this and would like to learn more.

Answer -

4 Parts

  • Ethical reason for consuming animals
  • Methane produced by cows are a harmful greenhouse gas which is contributing to our current climate crisis
  • Health Reasons - there is convincing evidence that processed meats cause cancer
  • it takes a lot more calories of plant food to produce the calories we would consume from the meat.

Details about the answers are in the comments

  • pfannkuchen_gesicht@lemmy.one
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    1 year ago

    Because you need considerably more resources to grow meat than you need to to grow a nutritionally equivalent amount of vegetables.

      • Wilzax@lemmy.world
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        1 year ago

        That field could be used to grow a different crop than grass, which would use less water per calorie of human food produced

        • ValiantDust@feddit.de
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          Also, hardly any cows just eat grass these days. That’s not how you get a lot of meat as fast and as cheap as possible. Also, since cows need a lot of grass, I a lot less area would remain for other crops even if they did (since grass needs way more area for the same amount of calories than stuff like soybeans). So it’s actually a good thing, they aren’t just eating grass.

            • ValiantDust@feddit.de
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              1 year ago

              If that is the case, then they are more the exception than the rule. (Do you by chance have any source on that? Because I’m pretty sure here in Germany that’s not the case) Also, at least Switzerland produces less beef than it consumes, so that’s not exactly sustainable. I don’t know about the other two.

            • rog@lemmy.one
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              1 year ago

              Funnily enough, having cattle on that land only further fucks it up by causing erosion that can take decades to resopve even after the cattle is removed.

            • dQw4w9WgXcQ@lemm.ee
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              1 year ago

              There are of couse exceptions and areas where cattle can graze all year, and the need to deforest areas isn’t as large as other places. However, for the majority of beef production, there are less enviornmentally friendly cattle food implemented. So maybe the solution should be that only the areas that can produce beef sustainably should be allowed to consume it? I would assume that that would be an unpopular policy, so I find it to be a much better solution to reduce the beef consumption even in the areas with sustainable producion and rather let those areas export the excess production.

        • Wooki@lemmy.world
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          1 year ago

          Who waters the grass to feed cows? You farm them in a suitable region!

          • hobs@lemmy.ml
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            1 year ago

            They actually graze in national forest land in the US. I spent a lot of time tracking wolves to prevent the ranchers and the forest service from shooting wolves so they could safely graze deep into national forest land, destroying the local ecosystem, just as the rivers and bears and caribou started to recover after the reintriduction of wolves.

            • buzziebee@lemmy.world
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              1 year ago

              I think extrapolating from poor US environmental regulations to say that no where in the world is it sensible to produce dairy or beef is a bit of a false equivalence. We also don’t have lead pollution in our water, but saying no one should drink tap water because it has lead in it in a certain part of the US is also silly.

              I’m all for alternative protein sources and sustainable agriculture, but eliminating meat consumption likely isn’t the best approach. The US, Brazil, and a bunch of other countries using stupid practices like slash and burn agriculture really need to develop and enforce more sustainable practices via regulations and enforcement.

      • Cynicivity@lemmy.world
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        1 year ago

        Unless you are a small hobby farm, you’re not putting your cows out on pasture alone to raise them for meat. Most grasses are deficient in one or more vital nutrients that the cows need to grow. Most cows today are fed TMR (Total Mixed Rations). These are diets carefully mixed with different grasses, grains, hays, and mineral supplements. There are different metabolic diseases that cows can get when eating diets deficient in different nutrients. Cows that are sick don’t want to eat, and cows that don’t eat don’t grow. To a farmer, that’s like burning money.

        • roastpotatothief@lemmy.ml
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          1 year ago

          that’s true in a few parts of the world. it may not be valid at all, depending where op is from. in general livestock is the most sustainable land use food.

            • AA5B@lemmy.world
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              1 year ago

              I’d also like to know, but I imagine that at a small enough scale, it’s mostly letting a few animals live on otherwise unused land, and mostly just protect them. This imagined ideal would disappear extremely quickly, scaling even to village level, and not relevant to modern farming

              • roastpotatothief@lemmy.ml
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                1 year ago

                This is exactly what happens. The highest quality land in a country is used for tillage. The less productive parts are used for grazing. This is how farmers make the most money. They’d be fools to use productive land for grazing and grow crops on poor land.

          • KitsuneHaiku@ttrpg.network
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            This is so wrong. I don’t even know where to begin. We grow so much alfalfa (huge waste of water) and soybeans in the US to support our own and other countries’ meat farming, then we ship it across the world. You could find this out with a simple Google search. This is willful ignorance.

            Greenhouse gas emissions - Meat accounts for nearly 60% of all greenhouse gases from food production

            Water usage - it takes over 1800 gallons of water to produce e just one pound of beef.

            In order to help, you don’t even have to go vegan. Reducing meat consumption is helpful too with something like “meatless Monday”

            • Misconduct@startrek.website
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              I live in AZ. You know the desert state? The state that catches on fire a lot? Yeah. We’ve had Saudis taking our water, for FREE, to grow food for their cattle back home for YEARS. It’s SO infuriating to see them asking us to conserve water and then looking the other way as we get drained for nothing.

              They’re not even the only ones dipping into our water either. It’s ridiculous.

            • roastpotatothief@lemmy.ml
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              greenhouse gases and water usage are different issues i didn’t address here.

              the usa is one of the “few parts of the world” i was talking about, that it is a bad example of sustainable farming.

            • commie@lemmy.dbzer0.com
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              1 year ago

              animals are fed parts of plants that people can’t or won’t eat. all of the studies about the ecological impacts ignore this fact and then attribute the water used to produce, say, cotton to beef.

            • commie@lemmy.dbzer0.com
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              1 year ago

              85% of soybeans are pressed for oil for human use.

              and those water use stats include things like the water it takes to raise feed crops. it would make sense, except that we mostly feed livestock plants or parts of plants that people won’t eat. for example, we raise cotton for textiles, and the seed would be industrial waste if we didn’t feed it to cattle. why do we count the water used to make jeans in the water used to make beef? it’s just dishonest.

          • usernamesAreTricky@lemmy.ml
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            1 year ago

            livestock production in the UK and Ireland is still linked to rainforests abroad since chickens, pigs and cows are often fed imported soybeans. Brazil is the world’s largest soybean exporter, and much of its crop is grown on deforested land.

            Many people might also be surprised to learn that Ireland and western regions of Great Britain are home to rainforests: temperate forests sometimes called Celtic or Atlantic rainforests. And, like their tropical counterparts, UK and Irish rainforests are threatened by grazing livestock, particularly deer and sheep.

            https://theconversation.com/livestock-grazing-is-preventing-the-return-of-rainforests-to-the-uk-and-ireland-198014

          • Gebruikersnaam@lemmy.ml
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            1 year ago

            If it is anything like here they supplement the feed with a ton of soy beans, which is causing huge problems in Brazil. iirc 87% of soy is used for cattle.

          • jeffw@lemmy.world
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            1 year ago

            Just globally. Not sure about specific countries. Virtually all of the Amazon deforestation, for example

              • jeffw@lemmy.world
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                1 year ago

                We can’t have more cows if they don’t have food. We need to cut down trees to grow other stuff to feed the cattle. Global demand for beef is rising, mainly due to increases of standards of living in Asia.

                So how do we raise more cattle without more farmland to grow food for them?

  • BlameThePeacock@lemmy.ca
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    1 year ago

    The basic problem is that to get 1000 calories of beef, you need to feed the cow something like 10,000 calories. So growing a cow is actually growing an entire field of wheat/corn/etc., then feeding it to the cow, then eating the cow.

    Farming all of those crops for the animals takes up a lot of land, consumes fresh water, produces wastes, and uses oil/gas (for farm equipment directly, or to produce things like nitrogen fertilizers) which produces co2. Cows also produce methane (that’s the fart thing) which is a bad greenhouse gas.

    You could just eat the wheat/corn/etc. directly (most of the time) and skip the meat step therefore saving a massive amount of environmental impact.

    Meat sure is tasty though.

    • goforliftoff@lemm.ee
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      1 year ago

      I remember driving through Iowa and seeing vast fields of corn and learning that the majority of that corn was not even destined for human consumption. That kinda blew my mind.

      • rog@lemmy.one
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        Luckily there is still enough left over to poison the population with high fructose corn syrup

      • Dr. Coomer@lemmy.world
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        You wanna know another fact? Not all corn can be consumed by humans. There is actually corn that can only be eaten by animals like cows.

    • Dr. Coomer@lemmy.world
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      Plus is the fact that not all plants have the right amount of vitamins and minerals necessary to maintain the human body like meat does. Although it is possible, it does require research and monitoring to ensure that your getting all the nutrients you need. And yes, meat just tastes good.

      • BlameThePeacock@lemmy.ca
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        What kind of bullshit are you peddling?

        If you’re discussing complete proteins then all it takes is rice and beans. Not particularly difficult given that about half the world population survives on that without much meat.

      • usernamesAreTricky@lemmy.ml
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        It increases methane emissions and doesn’t scale

        We model a nationwide transition [in the US] from grain- to grass-finishing systems using demographics of present-day beef cattle. In order to produce the same quantity of beef as the present-day system, we find that a nationwide shift to exclusively grass-fed beef would require increasing the national cattle herd from 77 to 100 million cattle, an increase of 30%. We also find that the current pastureland grass resource can support only 27% of the current beef supply (27 million cattle), an amount 30% smaller than prior estimates

        […]

        If beef consumption is not reduced and is instead satisfied by greater imports of grass-fed beef, a switch to purely grass-fed systems would likely result in higher environmental costs, including higher overall methane emissions. Thus, only reductions in beef consumption can guarantee reductions in the environmental impact of US food systems.

        https://iopscience.iop.org/article/10.1088/1748-9326/aad401

        Taken together, an exclusively grass-fed beef cattle herd would raise the United States’ total methane emissions by approximately 8%.

        https://iopscience.iop.org/article/10.1088/1748-9326/aad401/pdf

        Further, plenty of the land that grazing takes place on is not naturally grassland, and the “grass-fed” that you’ll see anywhere are still getting grain as well

        Most of the UK and Ireland’s grass-fed cows and sheep are on land that might otherwise be temperate rainforest – arable crops tend to prefer drier conditions. However, even if there were no livestock grazing in the rainforest zone – and these areas were threatened by other crops instead – livestock would still pose an indirect threat due to their huge land footprint

        […]

        Furthermore, most British grass-fed cows are still fed crops on top of their staple grass

        https://theconversation.com/livestock-grazing-is-preventing-the-return-of-rainforests-to-the-uk-and-ireland-198014

        Places that have tried to scale grass-fed production up have all kinds of problems. For instance, New Zealand often likes to tout its grass-fed production, but the production levels are so high that it’s a heavy polluter. It would require a 12-fold reduction in size in one region to meet the bare minimum standards for drinking water safety

        The large footprint for milk in Canterbury indicates just how far the capacity of the environment has been overshot. To maintain that level of production and have healthy water would require either 12 times more rainfall in the region or a 12-fold reduction in cows.

        […]

        The “grass-fed” marketing line overlooks the huge amounts of fossil-fuel-derived fertiliser used to make the extra grass that supports New Zealand’s very high animal stock rates.

        https://theconversation.com/11-000-litres-of-water-to-make-one-litre-of-milk-new-questions-about-the-freshwater-impact-of-nz-dairy-farming-183806

        • Crisps@lemmy.world
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          This is nonsense.

          ‘Exception for male dairy calves, production is predominantly pastoral-based, with young stock spending relatively brief portions of their life in feedlots. ’

          https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039332/

          Almost all cattle spends some time on feedlots, as grain improves the meat close to slaughter. Ignore these sites that give the false impression that almost all cows are raised in feedlots. It is blatantly incorrect and obvious to anyone that drives outside the city and looks out of the window.

      • BlameThePeacock@lemmy.ca
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        The number of cattle that can be raised this way is so small it isn’t a valid option to meet demand.

        Also, that land could be used for other things like goat farming which would be far more energy efficient than cattle.

    • YoBuckStopsHere@lemmy.world
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      But growing a cow that eats the grasses makes it for I get the meat and the vegetables all at once and it tastes great /s

  • Beto@lemmy.studio
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    • Ethical reasons: hundreds of billions of animals are killed every year (not counting fish), after living a miserable and short life.
    • Environmental: greenhouse emissions (CO2 and methane), deforestation for pastures, water pollution, are all caused by animal agriculture. If everyone went vegan we’d need only 25% of the land we currently use for agriculture.
    • Health: there is some evidence that meat causes cancer, and convincing evidence that processed meat causes cancer. Also, the use of antibiotics for animals can lead to the development of antibiotic-resistant bacteria.

    Cow farts are methane, which are a more aggressive form of greenhouse gas, though with shorter lifespan.

    Here’s more info about meat and the environment.

    • Neato@kbin.social
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      For the cancer risk, this is the pertinent info:

      An analysis of data from 10 studies estimated that every 50 gram portion of processed meat eaten daily increases the risk of colorectal cancer by about 18%.

      That’s about half a hot dog. Seeing as the news isn’t exploding, this means that this is relative risk. Meaning your current chances of getting colorectal cancer is X. Eating a hot dog every other day continuously multiples your chance by 1.18. American Cancer Society states that over their lifetime, 1 in 23 men (4.35%) of men will develop colorectal cancer. This means if you ate 1 hot dog every other day continuously, a man’s odds of contracting colorectal cancer changes from 4.35% to 5.13% over their lifetime.

      • Beto@lemmy.studio
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        That’s just for colorectal cancer. It also affects other types of cancer (like breast cancer) and increases the chance of dying from heart disease considerably.

        • Neato@kbin.social
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          But there weren’t any good numbers on those I saw in there. Which is why I ignored the entire “meat” claim as it didn’t list useful metrics. “Might cause cancer” doesn’t really help anyone. There only seemed to be useful data about processed meat and colorectal cancer.

  • BrerChicken @lemmy.world
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    Your edit is actually missing the biggest reason–all the energy and water it takes to raise the meat. It’s just not sustainable.

  • Smoogs@lemmy.world
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    A lot more water to make the food for cows than what humans consume.

    A lot more food to feed a cow than what it would take to feed the human the same type of food.

    And the growth of that food to keep feeding these animals in large batch is pretty much creating dead areas of land that gets ruined if it’s not carefully monitored. And the run off into the water supply is a problem. This is why industrial level of farming is really really bad for the environment.

    You’re supposed to move cattle around in pastures for regrowth and not entirely decimate it. The capitalists do not care about that until a court summons tells them to care about that.

    Currently there’s some better methods however the consumption stays high.

    Health wise : all meat diets (meat at every meal) can produce issues in your body.

    Cured meat or heavy salted meat can lead to heart issues and kidney stones.

    You should mix in some fruit and vegetables and maybe even substitute some entire meals so that meat is consumed only a few times a week if only for your body’s sake. Your taste buds aren’t the same organ as your heart. They aren’t the organs that make your body stay alive.

      • Firemyth@lemm.ee
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        The point is that you can grow a plant based diet for a human for much less resource cost than you could for a cow.

        Multiplied by the amount our current meat industry runs at and you get decimation of large swaths of lands, much higher emission of greenhouse gasses, etc…

        • commie@lemmy.dbzer0.com
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          animals are fed parts of plants that people can’t or won’t eat. all of the studies about the ecological impacts ignore this fact and then attribute the water used to produce, say, cotton to beef.

              • Firemyth@lemm.ee
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                Maybe I’m misunderstanding your argument- as that publication back what we are saying about the beef industry having a massive impact on the environment

                • commie@lemmy.dbzer0.com
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                  1 year ago

                  read the methodology and you will see cottonseed is fed to cattle, and the water to grow that cotton is attributed to cows instead of the textile industry.

      • fkn@lemmy.world
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        ~This is simply false. Cows are often fed all or nearly all corn diets.~

        Only once they are on the feed lot, then they are fed usually 70-80% corn based diets.

    • commie@lemmy.dbzer0.com
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      animals are fed parts of plants that people can’t or won’t eat. all of the studies about the ecological impacts ignore this fact and then attribute the water used to produce, say, cotton to beef.

      • fkn@lemmy.world
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        ~This is false. Cows in the US are primarily fed corn. Not the can’t/won’t eat stuff.~

        Edit: I am wrong. They said only fed about 8% human edible grain.

        • commie@lemmy.dbzer0.com
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          most cows eat mostly grass most of their lives. they also eat silage. and yes there is corn, but that’s not the bulk of any cows diet

          • fkn@lemmy.world
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            Not in industrial farms. There is no grass there. They don’t bring hay.

            It’s literally a sales pitch in the US to disambiguate corn fed and grass fed cattle.

            • commie@lemmy.dbzer0.com
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              you just don’t know what you’re talking about. cattle are raised in the field and then finished on feed lots.

              grass fed just means that the cattle were only fed grass. but all cattle eat grass

              • fkn@lemmy.world
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                Only until they are weaned. Then onto the feed lot they go and corn they eat.

                • commie@lemmy.dbzer0.com
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                  so you are now admitting that literally all cattle eat grass, but trying to pretend your akshully still right. I guess plenty of toxicity flowed off of reddit.

          • fkn@lemmy.world
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            95% of all cattle feed is corn in the US. Raised to 600lbs or so before being put on the feed lot. Finishing in this case can be the final 400-600lbs fed on 95% corn.

            About 40% of all corn grown in the US is grown exclusively for feed nearly all of which is used within the US.

      • Smoogs@lemmy.world
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        won’t eat

        Is not the point of the argument when we’re taking about what humans shouldn’t eat. We can’t cater to wants anymore when growing percentage are starving.

        can’t eat

        Which is bullshit. We didn’t invent their diet. we substituted it. They might eat grass but we eat plenty of other green substitutes. The amount we consume of it doesn’t come close to their needs though.

        • commie@lemmy.dbzer0.com
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          cows eat mostly grass but, for instance, poultry are fed a lot of soy. that soy is usually (almost always) in the form of so-called “soy meal” or “soy cake”, but that is actually a waste product from pressing soybeans for oil. it would be industrial waste if we didn’t feed it to livestock.

          • Smoogs@lemmy.world
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            Soy oil is only one form of oil that humans can use. One of many. none of this argues the points put forward. It still requires much more water than if we stuck to humans eating less meat. And it not even requiring for people to completely cut out meat. Which has more pros for both humans and cows than cons.

  • erasebegin@lemmy.world
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    The core issue is soil quality. Without sufficient organic content in the soil, all our food, whether it be plant or meat, has drastically reduced nutritional content meaning we need to consume more for the same effect. We’re heading for a global food shortage because of the one key issue. Healthy soil also sequesters an enormous amount of carbon from the atmosphere. So instead of fighting the beef vs tofu wars, we should be focusing on encouraging agricultural practices that enrich soil rather than destroy it. We have about 50 years of crop cycles left before the majority of arable earth turns to sand.

    Shifting your diet to be more plant-based is a good idea, but it’s not the crux of the issue.

  • tofu@geddit.social
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    To learn more about the environmental impact of meat consumption, I recommend this Our World in Data article: https://ourworldindata.org/environmental-impacts-of-food

    I would highlight this chart: https://ourworldindata.org/grapher/ghg-per-protein-poore?country=Pig+Meat~Beef+(beef+herd)~Eggs~Lamb+%26+Mutton~Grains~Milk~Other+Pulses~Poultry+Meat~Tofu+(soybeans)~Peas~Nuts~Groundnuts~Fish+(farmed)~Cheese~Beef+(dairy+herd)~Prawns+(farmed)~Tofu

    For example, getting 100 g of protein from beef emits ~ 50 kg of CO2. Getting 100 g of protein from tofu only emits ~ 2 kg of CO2.

    • commie@lemmy.dbzer0.com
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      animals are fed parts of plants that people can’t or won’t eat. all of the studies about the ecological impacts ignore this fact and then attribute the water used to produce, say, cotton to beef.

      • tofu@geddit.social
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        1 year ago

        This is simply not true. Globally, 77% of the land area that’s used for agriculture is used either by livestock or to grow food to feed to livestock (such as corn and soy). Only 23% is used for crops for direct human consumption (1): This makes sense intuitively: If I feed a cow 1 kcal of energy, it will create way less than 1kcal of energy to be consumed. In fact, beef has an energy efficiency of 1.9%. This means, for every 100 kcal the cow eats, you only get out 1.9 kcal (2). Otherwise, cows would defy the laws of physics. Do you really think that the 74 billion chicken, 620 million sheep and 330 million cattle that we slaughter each year for meat just are fed human-food leftovers? (3)

        1: https://ourworldindata.org/global-land-for-agriculture 2: https://ourworldindata.org/meat-production#energy-conversion-efficiency 3: https://ourworldindata.org/meat-production#livestock-counts

        • commie@lemmy.dbzer0.com
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          1 year ago

          but cows are pastoral animals an eat mostly grass, not crops. and soy is a great example of what I’m saying: over 80% of soy is pressed for oil, and the industrial waste from that process is most of the soy that is fed to animals.

  • jeffw@lemmy.world
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    1 year ago

    I think everything has been addressed. I just wanted to clarify that the methane is from cow burps, not farts.

    • thrawn@lemmy.world
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      1 year ago

      One other thing I think is worth mentioning: meat is good, but it’s not even that good. As a child I was a very picky eater and largely carnivorous, having to purposefully supplement the occasional vegetable. Now I’m essentially pescatarian because honestly, most meat isn’t really good. It can be low quality, bland, and boring. Innovative chefs seem to be realizing that, and I personally agree that Eleven Madison’s food is better now that it’s fully plant based.

      Meat can be such a crutch, and when it’s not, it requires quality cuts and good preparation. And yet many people would rather eat a tough, poorly seasoned mediocre steak than a vegan dish, even if it’s genuinely a bad experience, but I’m pretty sure it’s a misplaced pride thing.

      Finally, working with meat can be a lot harder than vegetables, especially chicken. Dominique Crenn has a wonderful cookbook featuring incredible plant based dishes, and of course Atelier Crenn is one of the most convincing arguments of plant superiority.

      I find that, for those who simply don’t care about the world around them, an appeal to taste and ease is far more effective than trying to introduce humanity. It also prevents the knee jerk reaction to plant based diets— “sure, I like my meats too, but it’s just too boring/doesn’t taste good enough” shifts the discussion from tribalistic hatred of vegans to something that directly impacts them, largely the only way to actually get some people to listen.

  • Izzy@lemmy.world
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    1 year ago

    Because the amount of resources required to raise the livestock required to support the free market of meat is unsustainable. Also the impact of all that livestock is a huge contributor to climate change. So besides the moral argument of it being wrong to eat another living beings there is a very real danger to ourselves in the future.

    • Athena5898@kbin.social
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      1 year ago

      I’m going to piggyback off of this too since i havn’t seen it mentioned as much, cows need a LOT of water. They are literally walking bathtubs (the average cow stomach is the size of a tub, i have a bachelor’s in animal science and actually have seen in one ><) and this is why it baffles me when someone talks about the water need for plants or things like almond milk. It’s not even comparable as far as efficiency is concerned, and honestly, plant producers have actually worked to be better at water conservation since it’s important to them, but most cow production doesn’t even consider it into the equation.

        • Athena5898@kbin.social
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          1 year ago

          Np! And I’m going to say something controversial to my fellow vegetarians and vegans. Giving up meat can be very very hard depending on your personal circumstances. I grew up 30 minutes away from any groceries in cow country. I’m also autistic with mild food issues. It’s taken me a long time, work, and circumstances changes (i live in a nice vegetarian friendly city now) to get where i am now. I think the “do or you are a utter failure” that is rampant in anti meat spheres is honestly to its harm. Instead of encouraging everyone to do their best while we fight for better systematic changes, there is scorn and fingerwagging if someone isn’t perfect.

          • Digitalprimate@lemmy.world
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            1 year ago

            That’s an excellent point! I totally agree harm reduction is the goal here.

            However and alas, I have absolutely no excuse living where I live and having the extensive cooking skills I gained over the years. No excuse at all. It’s on my mind a lot lately.

  • AlmightySnoo 🐢🇮🇱🇺🇦@lemmy.world
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    1 year ago

    IMO what’s bad is not meat consumption itself, which we were able to do sustainably for millennia and it was never really a problem. The problem is that now you’re getting too much of it way too easily. Eating too much meat is a problem because it perpetuates demand for unethical mass-production of meat and livestock are made to suffer as a direct result.

    • 4z01235@lemmy.world
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      1 year ago

      Take a look at the global human population chart over the last few millenia. Things can seem sustainable when there are a million people on the planet. When there are 8 billion things are a bit different.

  • sndrtj@feddit.nl
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    1 year ago

    You’re not getting many answers yet regarding nitrogen.

    As a preface: When it comes to climate and environmental concerns with respect to agriculture, the word “nitrogen” does usually not refer to the completely harmless atmospheric nitrogen (N2). Instead, it refers to various compounds that contain nitrogen.

    Nitrogenous pollution from cattle comes in two shapes:

    The first is methane (NH3). A single cow burps and farts out about 100kg of methane each year. Methane is a greenhouse gas that’s 28 times as potent as CO2. This means a single cow is responsible for as much as 2800kg equivalent in CO2 each year due to burps and farts alone. For reference, the CO2 per capita emissions globally are about 4 tons (4000kg) per year, for all sources combined. Cows, relatively speaking, therefore produce a huge amount of CO2 equivalent.

    The second is all the nitrogenous compounds in their excrements. This acts as a fertilizer on soil and in the water. While that sounds good, it leads to various unwanted effects. One is that agricultural runoff causes algal blooms in water that then ends up killing a significant amount of marine life. Another is that nutrient-rich soils tend to seriously decrease plant species diversity. Many native and wild plants actually need nutrient-poor soils to thrive. Those plants will get outcompeted by a small group of fast-growing plants that do well in all the cow-poop-infested soil. These compounds also tend to travel far, via agricultural runoff or even via the air, so ecosystems far away from farms are also impacted.

    • Skyraptor7@lemmy.worldOP
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      1 year ago

      Is there a way to absorb methane from the atmosphere? Ie like a plant absorbing CO2 is there a substance which does something similar for methane?

      Also for runoff, I assume there are no ways to contain this issue. Or is there perhaps a more sinister answers that it is possible but farms have not invested into such structures due to economical reasons.

      • matlag@sh.itjust.works
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        1 year ago

        There is no solution to capture methane in the air. Its lifespan in air is 12years, so if we stop emitting, it will go away by itself. Until then, it’s quite bad. Capturing it at the source is also challenging (can you hemetically seal a cow’s ass without impacting its health?!).

        The best solution is… less farms, less cows but that means less meat!

  • Coreidan@lemmy.world
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    1 year ago

    There is a lot of waste from the agricultural process that needs to be considered as well, like fertilizer run off into rivers, etc.

    • 4lan@lemmy.world
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      1 year ago

      Which applies even more to meat production. You have to grow massive amounts to feed livestock, more than if we just grew and ate the food directly.

      • commie@lemmy.dbzer0.com
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        1 year ago

        animals are fed parts of plants that people can’t or won’t eat. all of the studies about the ecological impacts ignore this fact and then attribute the water used to produce, say, cotton to beef.

        • 4lan@lemmy.world
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          1 year ago

          I’m not arguing that we should eat animal feed, but rather use that land to grow food for humans

          • commie@lemmy.dbzer0.com
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            1 year ago

            we already do that. for instance, soybeans. over 80% of the global soy crop is pressed for oil for human use, but then the industrial waste is fed to livestock.

            • 4lan@lemmy.world
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              1 year ago

              It’s funny how nowadays when a cow eats what is naturally supposed to eat we charge double price for it and consider it some specialty. It’s no wonder they have to jack them up with hormones.

      • Coreidan@lemmy.world
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        1 year ago

        Exactly my point. We can’t just look at the meat. We have to look at the entire process.

        Even if we stopped eating meat agriculture in its own right is a big problem.

        If we stopped eating meat we’d have to grow a lot more crops to make up for it which will only cause other problems instead of fixing the root cause.

        • 4lan@lemmy.world
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          1 year ago

          If we stopped eating meat we would have 50% more land for farming human food than we currently do (we currently use 33% of cropland for feed alone). Raising cattle is not efficient at all, it is a waste of energy and land and water.

          It’s not like the land we used to grow the feed we’ll just evaporate. This is why so much lobbying has gone into pushing the narrative that we all need to eat a ton of red meat.

          • Coreidan@lemmy.world
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            1 year ago

            I am not disagreeing. My whole point is that agriculture in itself is a problem. Simply getting off meat doesn’t solve the problem.

            We need a way to make agriculture not so wasteful and damaging to the environment. Cutting out meat reduces the need for agriculture but doesn’t eliminate it. As long as agriculture is around we will be destroying our environment.

            Downvote me all you want.

            • 4lan@lemmy.world
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              1 year ago

              So we shouldn’t reduce the problem on one front because we can’t get rid of the impact completely?

              Without agriculture we would all starve, you can’t say the same for beef.

              Why not reduce the damage that agriculture causes AND reduce the impact and scale of beef production?

              All I hear is excuses to keep eating factory-farmed hormone-laden beef.

              • Coreidan@lemmy.world
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                1 year ago

                So we shouldn’t reduce the problem on one front because we can’t get rid of the impact completely?

                I literally never said this. You are saying it.

                All I hear is excuses to keep eating factory-farmed hormone-laden beef.

                I literally never said this either. You’re pulling this out of your ass.

                There is nothing wrong with pointing out the flaws of current day agriculture. Sounds like you just want to argue and you’re injecting your own dialogue to accomplish that.