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At the scale we do it, farming is not a healthy relationship to the environment. It does immense damage. Right now, livestock are 60% of the biomass of all mam
by DennisP 6y ago
At the scale we do it, farming is not a healthy relationship to the environment. It does immense damage.
Right now, livestock are 60% of the biomass of all mammals on the planet. Humans are 36%, leaving only 4% wild mammals. Our poultry has three times the biomass of wild birds.[1] Food production takes up 40% of the Earth's land mass.[2]
Scientists have defined nine "planetary boundaries" we need to avoid crossing to avoid environmental catastrophe. For the ones related to farming, we've already crossed the boundaries for land use, biodiversity, and the nitrogen cycle, we're close for the phosphorus cycle, and over halfway there for freshwater use.[3]
According to the book Clean Meat, a 2011 study found that cultured beef would use 99% less land and 96% water. We feed nine calories to chicken to get one calorie of meat.
If we were to convert to cultured meat and milk, we could stop most deforestation and let most of that 40% of land mass revert to native forest and prairie. We'd pull back from those planetary boundaries and absorb gigatons of carbon. Do the same with fish and maybe ocean populations could recover.
That would be a healthy relationship with our environment.
[1] https://www.ecowatch.com/biomass-humans-animals-2571413930.html https://www.ecowatch.com/biomass-humans-animals-2571413930.h...
[2] https://www.nationalgeographic.com/history/article/agriculture-food-crops-land https://www.nationalgeographic.com/history/article/agricultu...
[3] https://blogs.ei.columbia.edu/2011/08/05/have-we-crossed-the-9-planetary-boundaries/ https://blogs.ei.columbia.edu/2011/08/05/have-we-crossed-the...
- ur-whale 6y agoThanks for this, wholeheartedly agree. If we are ever to restore earth to the Eden garden we'd all like it to be, then these type of advances are the only way this'll ever happen.
- pif 6y agoI don't want Eden. I want medicine, engines, cheap energy and internet.
- NoNotTheDuo 6y ago> We feed nine calories to chicken to get one calorie of meat. This is not a byproduct of the current farming landscape, but an artifact of the food chain: https://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer_efficiency https://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer... & https://en.wikipedia.org/wiki/Ecological_efficiency https://en.wikipedia.org/wiki/Ecological_efficiency. In general, from one level of the food chain to the next, only 10% of the energy is able to be converted.
- _wldu 6y agoMy chickens eat bugs around the house. Edit: I'm not joking. Old-school local farm chickens really do eat bugs. They feed themselves a good part of the year. Bugs and vegetable scraps. I'm not sure what new-school corporate farm chickens eat. And foxes will eat the chickens (if they get a chance). The food chain.
- DennisP 6y agoA few years ago I got to know a commercial chicken farmer. He showed us his "chicken houses," which were large dirt-floor buildings packed so full of chickens you could barely see the ground. They ate whatever grain he threw in there. By contract he had to buy grain from Tyson and sell them the chickens.
- foogazi 6y ago> By contract he had to buy grain from Tyson and sell them the chickens. I’m assuming a contract he signed Edit: similarly you could say by contract Tyson had to sell him the grain and buy chickens from him
- DennisP 6y agoI wasn't making a moral judgement, just emphasizing that the chickens eat grain and will continue eating grain. I could also get into a discussion of market inequities and whatnot but it'd be a bit off-topic in this discussion of environmental impacts.
- mariushn 6y ago> If we were to convert to cultured meat and milk, we could stop most deforestation and let most of that 40% of land mass revert to native forest and prairie Or, due to human/life nature, human population will grow even larger and take up that space too :(
- DennisP 6y agoUrbanization has been the trend for decades. With most farming obsolete, it would probably accelerate. Not only do we take less space that way, but urban populations tend to have lower birth rates.
- tharkun__ 6y agoUrbanization isn't all fine and dandy. In fact, I really don't like living in high density housing at all. I start getting itchy way before we reach high density. Why is it so important to use less space? I like using more space per person but having less people. Does away almost magically with many issues we see in high density urban areas. I'm not saying we should all live on a farm. Just don't cram thousands of people into a high rise and then build one high rise next to the other for miles.
- fogihujy 6y ago"Oh, great; now we can support an additional 5 billion people!"
- tpoacher 6y agoThis is 100% true as long as human motivations are not factored into play. The equally plausible reverse scenario is that as soon as artificial honey is preferred, bees will be killed off for being useless in the capitalist sense, and the planet will die. Nothing is ever black and white.