this post was submitted on 24 Jul 2024
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[โ€“] [email protected] 28 points 1 month ago* (last edited 1 month ago) (1 children)

I turn crops into fertilizer after they've been turned into food. In fact, I am doing so as I post. ๐Ÿ˜ค

[โ€“] [email protected] 7 points 1 month ago (1 children)

I would say you're full of crap, buuuutttt....

[โ€“] [email protected] 4 points 1 month ago
[โ€“] [email protected] 19 points 1 month ago* (last edited 1 month ago) (1 children)

Turn the byproducts into animal fodder and biofuel

Zero waste

[โ€“] [email protected] 7 points 1 month ago (1 children)

The issue with using byproducts as animal fodder is that ruminants produce a lot of methane while digesting them. This enteric fermentation in their stomachs accounts for around 6% of global greenhouse gas emissions, while the entire aviation industry sits at just 2-3%. If we give them more food that is harder to digest, they'll emit even more methane per animal.

Biofuels make a lot of sense though. After extracting the fuel, the remaining digestate can be used to produce biochar or be put directly on fields as fertilizer, which is nice because synthetic fertilizers account for 1-2% of greenhouse gas emissions.

Another option is to burn the byproducts for heat or electricity in winter during short periods when there's not enough wind and solar power to cover energy demand.

[โ€“] [email protected] 8 points 1 month ago

Slurp up the cow farts for fuel

[โ€“] [email protected] 15 points 1 month ago (2 children)

Can we eat the humans, after we fattened them up?

[โ€“] [email protected] 13 points 1 month ago* (last edited 1 month ago) (1 children)

Weird to use a picture of a child predator in an unrelated meme

[โ€“] [email protected] 2 points 1 month ago

Stfu. It's an established meme template

[โ€“] [email protected] 13 points 1 month ago (1 children)

Humans should've evolved photosynthesis and just eat the sun

[โ€“] [email protected] 4 points 1 month ago

Sun worship is considered the most primitive of religions, and yet that's where everything comes from. Everything. From food to heat to energy. Even fossil fuels is captured sunlight from the past, and radioactive material for nuclear power is from ancient supernovae. Everything. All praise the Sun!

[โ€“] [email protected] 9 points 1 month ago (1 children)

I do tire of explaining to vegans that differences in soil quality mean that crops fit for human consumption cannot be grown everywhere and that making the best use of the land available often involves turning it into food via an intermediary

[โ€“] [email protected] 4 points 1 month ago (1 children)

making the best use of the land

This is probably where we disagree

[โ€“] [email protected] 3 points 1 month ago (1 children)

What do you propose we do with inarable land then?

[โ€“] [email protected] 3 points 1 month ago (1 children)

There are a lot of uses for land that can't grow food crops. It could be renaturalized for example.

[โ€“] [email protected] -1 points 1 month ago (1 children)

I'm not sure if you're aware, but the current human population cannot be sustained using only food grown on arable land

[โ€“] [email protected] 6 points 1 month ago (1 children)

It absolutely could. Not with the current diet but if there was a shift to less meat then we could substantially reduce the amount of land used in food production.

[โ€“] [email protected] -2 points 1 month ago* (last edited 1 month ago) (1 children)

If we switched to a 100% plant based diet, there would be a strict decrease in the amount of available food. Animals eat things besides food that could have gone to humans. Land that could be used for growing crops is rarely used for raising livestock.

[โ€“] [email protected] 5 points 1 month ago (2 children)

Straight out not the case. lots of animals are on farmable land. Also animals eat lots of our crops eg 80% of the worlds soy. Here's one (of many possible ones) reference stating that we would only need 25% of the current agricultural land if the world went vegan. https://www.economist.com/graphic-detail/2022/01/28/if-everyone-were-vegan-only-a-quarter-of-current-farmland-would-be-needed

[โ€“] [email protected] 1 points 1 month ago (1 children)

your economist article obviously relies on poore-nemecek 2018, which is a paper i wouldn't trust to tell me the CO2E of CO2

[โ€“] [email protected] 1 points 1 month ago (1 children)

There's lots of other sources. do you have a counter source?

[โ€“] [email protected] 1 points 1 month ago

no. I'm attacking the methodology of poore-nemecek

[โ€“] [email protected] 1 points 1 month ago (1 children)

animals eat lots of our crops eg 80% of the worlds soy.

the vast majority of the soy eaten by animals is the waste product from soybean oil production. that's a conservation of resources, and it's a good thing.

[โ€“] [email protected] 1 points 1 month ago (1 children)

do you have a reference for this?

[โ€“] [email protected] 1 points 1 month ago (1 children)
[โ€“] [email protected] 2 points 1 month ago (1 children)

So your data set shows 76% used for animals and 4% for industry. That's very similar to the figures I referred to.

[โ€“] [email protected] 1 points 1 month ago

you can see that the vast majority of the uses are from soy meal or soy cake. that's the industrial waste from making soybean oil. exactly as I said.

[โ€“] [email protected] 2 points 1 month ago

So true (V)

[โ€“] [email protected] 2 points 1 month ago

Hemp needs to be used for a lot more things since it is a very versatile plant.. I can't imagine living in Louisiana with the horrible ethane cracker plants.