• usernamesAreTricky@lemmy.ml
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    1 year ago

    That’d still be quite high in emissions. Land deforestation and the massive amounts of feed are large portions of emissions for meat and dairy products. It takes far more feed than it does to eat crops directly due to the energy loss from creatures using that energy to move around, on their body functions, etc.

    The practices somewhat similar to what’s suggested there work out too well in practice. Manure lagoons, where waste is stored in huge pools to break down, have several environmental problems

    Rates of asthma in children living near a CAFO are consistently elevated.[4] The process of anaerobic digestion has been shown to release over 400 volatile compounds from lagoons.[13] The most prevalent of these are: ammonia, hydrogen sulfide, methane, and carbon dioxide

    […]

    Contaminants that are water-soluble can escape from anaerobic lagoons and enter the environment through leakage from badly constructed or poorly maintained manure lagoons as well as during excess rain or high winds, resulting in an overflow of lagoons.[2] These leaks and overflows can contaminate surrounding surface and ground water with some hazardous materials which are contained in the lagoon.[2] The most serious of these contaminants are pathogens, antibiotics, heavy metals and hormones. For example, runoff from farms in Maryland and North Carolina are a leading candidate for Pfiesteria piscicida. This contaminant has the ability to kill fish, and it can also cause skin irritation and short term memory loss in humans[20]

    […]

    Antibiotics are fed to livestock to prevent disease and to increase weight and development, so that there is a shortened time from birth to slaughter. However, because these antibiotics are administered at sub-therapeutic levels, bacterial colonies can build up resistance to the drugs through the natural selection of bacteria resistant to these antibiotics. These antibiotic-resistant bacteria are then excreted and transferred to the lagoons, where they can infect humans and other animals.[13]

    Each year, 24.6 million pounds of antimicrobials are administered to livestock for non-therapeutic purposes.[23] Seventy percent of all antibiotics and related drugs are given to animals as feed additives.[4] Nearly half of the antibiotics used are nearly identical to ones given to humans. There is strong evidence that the use of antibiotics in animal feed is contributing to an increase in antibiotic-resistant microbes and causing antibiotics to be less effective for humans.[4] Due to concerns over antibiotic-resistant bacteria, the American Medical Association passed a resolution stating its opposition to the use of sub-therapeutic levels of antimicrobials in livestock.[13]

    https://en.wikipedia.org/wiki/Anaerobic_lagoon#Environmental_and_health_impacts

    • porkins@sh.itjust.works
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      1 year ago

      I hate to provide such a short answer to such a well written response, but perhaps shit lagoons aren’t the only way to process manure cleanly. Also, I’m not convinced that we can’t use high rise facilities for these animals and give them a matrix type experience. Each animal gets a cell, treadmill, VR screen/googles, and feed. Something along those lines.

      • ltxrtquq@lemmy.ml
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        1 year ago

        If that plan worked perfectly, you’d solve the land use and, giving you an extremely generous benefit of the doubt, the emissions from manure problems.

        All you have to now is figure out how to build and maintain these high-rises cost effectively, and how to generate enough power for a matrix-like experience and all the VR headsets and treadmills for the cows. And even then you’d still be wasting a lot of food by feeding it to animals rather than just eating it directly.

        • porkins@sh.itjust.works
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          1 year ago

          Use the methane and solar to fuel the facility. Capture the emission and reuse them in fertilizer as well. Have the facility be a one-stop-shop, which produces the feed from hydroponics. The VR for a cow is not going to be that difficult. Just project fields in front of them. The treadmill can just have bearings and not require power. If anything they can be used to generate it.