this post was submitted on 23 Feb 2025
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Summary

A new H5N1 bird flu variant has become "endemic in cows," with cases detected in Nevada and Arizona, raising concerns about human transmission.

Experts warn that without intervention, the outbreak will continue, but Trump has cut CDC staff and halted flu vaccination campaigns.

The virus's spread coincides with a severe flu season, increasing the risk of mutation.

The administration has also stopped sharing flu data with the WHO and shifted its containment strategy away from culling infected poultry, raising fears of inadequate response.

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[–] [email protected] 10 points 1 day ago (2 children)

I try to buy local fruit and veg only. Fun fact: if we all went vegan, we could free up 70-80% of the land currently being used for animal ag. We could rewild that land and still have excess food. We currently grow enough plants to feed 15B people, but we feed that to the animals instead.

[–] [email protected] 5 points 1 day ago* (last edited 1 day ago) (3 children)

We currently grow enough plants to feed 15B people, but we feed that to the animals instead.

a lot of the plant matter fed to animals is parts of plants we can't or won't eat.

and a lot of the land used isn't crop land, but grazing land

and they're is no reason to believe the land would ever be rewilded.

[–] [email protected] 11 points 1 day ago* (last edited 1 day ago) (3 children)

It's mostly corn.

Granted, it's not processed in a way to be fit for human consumption.

But still, most of it is corn. Some of it is corn cobs and stalks but most of it is kernels.

Outside of that, other grains are very common. Oats for example.

So, they are right. Raising plants to feed animals so we can eat the animals is less efficient than raising plants for us to eat. Especially in regards to cattle. Which is one of the most inefficient things in the US food system. The only reason it's so cheap is because of subsidation, both of the cattle and the corn that's grown to feed them.

And countries much larger than our own survive on rice and beans just fine. As queerminest eluded to in her comment.

As far as local food, I have a co-op. So I buy local vegetables and fruits when I can.

[–] [email protected] -2 points 1 day ago (1 children)

Raising plants to feed animals so we can eat the animals is less efficient than raising plants for us to eat.

if that were the situation, you might be right. but since we actually feed livestock mostly crop seconds and byproducts, it's actually a conservation of resources in a lot of situations, with minimal competition with human food sources

[–] [email protected] 6 points 22 hours ago (3 children)

1 kg of meat requires 2.8 kg of human-edible feed for ruminants and 3.2 for monogastrics

https://www.sciencedirect.com/science/article/abs/pii/S2211912416300013

we show that plant-based replacements for each of the major animal categories in the United States (beef, pork, dairy, poultry, and eggs) can produce twofold to 20-fold more nutritionally similar food per unit cropland. Replacing all animal-based items with plant-based replacement diets can add enough food to feed 350 million additional people, more than the expected benefits of eliminating all supply chain food loss.

https://www.pnas.org/doi/abs/10.1073/pnas.1713820115

[–] [email protected] -1 points 20 hours ago

your shepon paper shows a great deal of spinach being fed to chickens. why would it be fed to chickens if it were suitable for human consumption? I don't actually know, but my guess is that it is not suitable for human consumption, and that is why it is fed to chickens. that's a conservation of resources. the potatoes fed to cattle are likely the same.

this paper doesn't discuss this discrepancy at all. I have to say I don't find the analysis very compelling.

[–] [email protected] -1 points 20 hours ago (1 children)

soybean cakes, which production can be considered as main driver or land-use, represent 4% of the global livestock feed intake.

you clipped this out of the abstract, but it's highly relevant to what I've been saying: this is a byproduct of pressing soybeans for oil. if we didn't feed it to livestock, it would be industrial waste.

[–] [email protected] 4 points 20 hours ago (1 children)

When we look at the most common extraction method for soybean oil (using hexane solvents), soybean meal [feed to farm animals] is still the driver of demand

However, soybean meal is the main driving force for soybean oil production due to its significant amount of productivity and revenues

[...]

soybean meal and hulls contribute to over 60% of total revenues, with meal taking the largest portion of over 59% of total revenue

https://www.sciencedirect.com/science/article/abs/pii/S0926669017305010

This is even more true of other methods like expelling which is still somewhat commonly used

Moreover, soybean meal is the driving force for the whole process [expelling oil from soy] because it provides over 70% of the total revenue for soy processing by expelling

https://www.mdpi.com/2077-0472/9/5/87

Even other extraction methods being explored in research as well don't have soybean oil as the main driver of demand

From the results, soybean oil makes up around 24% of total revenues; revenue from insoluble fiber makes over 70%, due to the large amounts produced throughout the process. [of Enzyme-Assisted Aqueous Extraction]

https://www.researchgate.net/profile/Jasreen-Sekhon/publication/330375817_Economic_Feasibility_of_Soybean_Oil_Production_by_Enzyme-Assisted_Aqueous_Extraction_Processing/links/5c49d531a6fdccd6b5c586b6/Economic-Feasibility-of-Soybean-Oil-Production-by-Enzyme-Assisted-Aqueous-Extraction-Processing.pdf

[–] [email protected] 0 points 20 hours ago

a soybean is only about 20% oil to begin with. that means that even using the numbers you have here, the oil is twice as valuable per pound compared to the rest of the bean.

[–] [email protected] 0 points 21 hours ago

do you have the full papers? I can't really examine these claims from the links you provided.

[–] [email protected] -2 points 1 day ago (1 children)

beef cattle spend most of their life grazing.

[–] [email protected] 5 points 22 hours ago (1 children)

Where they emit the most methane and still are given supplementary feed. There's also not enough land to sustain a grazing only production system with the massive demand we have

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

[...]

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

[–] [email protected] 0 points 21 hours ago

no one said they are exclusively grass fed, not that we should be doing that

[–] [email protected] -1 points 1 day ago (1 children)

it's not mostly kernels. livestock are fed the entire plant, and the kernels are a slim minority of the weight.

[–] [email protected] 2 points 17 hours ago (2 children)

Weight matters not even a little compared to the caloric content. If cows got more calories out of corn stalks than corn kernels, then they wouldn’t even finish growing the corn and would just feed them stalks. The fact you have to grow a corn stalk that weighs hundreds of times more than the kernels doesn’t mean the kernels aren’t what the farmers are after for livestock feed purposes. The stalk just gets tossed in for efficiency’s sake because the cows can also digest it.

[–] [email protected] 0 points 17 hours ago

The stalk just gets tossed in for efficiency’s sake because the cows can also digest it.

you literally don't know anything about feeding cows. just stop.

[–] [email protected] 0 points 17 hours ago (1 children)

. If cows got more calories out of corn stalks than corn kernels, then they wouldn’t even finish growing the corn and would just feed them stalks.

I don't think so. they may get more calories from silage, but they prefer the kernels, which would help the feed go down easier.

[–] [email protected] 3 points 17 hours ago (1 children)

You’re accusing me of not knowing how cows are fed when you’re inventing a world where farmers spend extra time growing crops to make it taste nicer to cows. Be real.

[–] [email protected] 0 points 15 hours ago

one of us is right.

[–] [email protected] 6 points 23 hours ago (1 children)

Even just replacing 25-50% meat with plants in the US would have incredible outcomes for the people. I guarantee we would be a far healthier population. The cheap meat being served up to Americans is not good.

[–] [email protected] 1 points 17 hours ago

Maybe this is bias from 20ish years of not eating meat, but most of the time it just smells foul to me, like an overly sour smell that only goes away if you spice the fuck out of it. Beef and chicken are the main offenders for this for me.

[–] [email protected] 2 points 23 hours ago* (last edited 23 hours ago) (1 children)

Still results in overall reductions in arable-land usage. Even more than just eliminating 100% of food-waste

we show that plant-based replacements for each of the major animal categories in the United States (beef, pork, dairy, poultry, and eggs) can produce twofold to 20-fold more nutritionally similar food per unit cropland. Replacing all animal-based items with plant-based replacement diets can add enough food to feed 350 million additional people, more than the expected benefits of eliminating all supply chain food loss.

https://www.pnas.org/doi/abs/10.1073/pnas.1713820115


Grazing usage isn't free from harms either

Livestock farmers often claim that their grazing systems “mimic nature”. If so, the mimicry is a crude caricature. A review of evidence from over 100 studies found that when livestock are removed from the land, the abundance and diversity of almost all groups of wild animals increases

https://www.theguardian.com/environment/2022/aug/16/most-damaging-farm-products-organic-pasture-fed-beef-lamb

[–] [email protected] 1 points 21 hours ago

in didn't say it's free from harms. I'm saying we aren't using that land to grow crops.

[–] [email protected] -2 points 1 day ago (1 children)

My point is, you try to... I try to also, but in the dead of winter there's no a local fruit and veggies. I'm also not vegan/vegetarian, I eat meat. Fish, and chicken primarily but I don't raise either, so I have to rely on someone else to do that for me.

We do actually get probably half our eggs from someone at my wife's work, and some. fruits and vegetables at the farmers market down the street in the summer. But they're closed now and have been most of winter.

It's harder than just saying "just stop" was my point. I'd love to be part of the solution where I can but there's zero chance of me not eating meat if it's available.

[–] [email protected] 6 points 22 hours ago

It's worth noting that environmentally, where the food comes from matters far far less than what you eat. Production emissions are far larger than any transportation emissions

Transport is a small contributor to emissions. For most food products, it accounts for less than 10%, and it’s much smaller for the largest GHG emitters. In beef from beef herds, it’s 0.5%.

Not just transport, but all processes in the supply chain after the food left the farm – processing, transport, retail and packaging – mostly account for a small share of emissions.

This data shows that this is the case when we look at individual food products. But studies also shows that this holds true for actual diets; here we show the results of a study which looked at the footprint of diets across the EU. Food transport was responsible for only 6% of emissions, whilst dairy, meat and eggs accounted for 83%.

https://ourworldindata.org/food-choice-vs-eating-local