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this post was submitted on 16 Jun 2024
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Asklemmy
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There is not conclusive evidence that organic food is better for the environment. Obviously there are facets of the environment impact that will be better than conventional agriculture, but there is a ~19% reduction in yield, and lower soil carbon in organic agriculture. A reduction in yield means more land must be cleared for agriculture, so the other facets of organic ag would need a to be substantially better than conventional to make up for it.
I disagree. Just following your source to its conclusion, I think it's safe to say OA (organic agriculture) is better all around:
Your conclusion that we'd have to clear more land for agriculture use if we all switched to OA seems flawed; e.g. here in Germany we use about 60% of agricultural land to raise livestock feed like corn etc (https://www.landwirtschaft.de/tier-und-pflanze/pflanze/was-waechst-auf-deutschlands-feldern). Seems to me like eating less meat and growing idk lentils or beans would not immediately lead to food insecurity.
This is also what the FAO says: yes, OA leads to yield reduction when compared to conventional methods, but not to food scarcity and instead to healthier ecosystems (https://www.fao.org/organicag/oa-faq/oa-faq6/en/).
(sry gotta go, more.later)
Yeah, I definitely agree we'd be better off cutting land used for livestock. I guess it's a slightly different story in Germany because any land you're using for livestock (or livestock feed) is presumably land that could be used for human food. In America, much of the land used for cattle is ranch land not suitable for agriculture. We do still have massive amounts of land cultivating crops like corn and hay for cattle that is suitable for agriculture, though.
Just going down that pro and con list, though, it really does seem unclear to me. OA releases less CO2, but it also stores less CO2 in the soil. Lower energy use/higher efficiency per land area is great, but what we really want is lowest energy use per X amount of food. The "enhanced soil and water quality" part is also debatable. this study shows a higher eutrophication potential from OA, so worse for water. It does seem to be dependent on the crop, and the impacts of beef are so insanely higher than plants, that it almost seems irrelevant how you farm crops.
It's somewhat like saying that a suburban block is better for the environment than a city block. It's true, but only if you consider just that plot of land. A city block is way more efficient in terms of per person effect on the environment.
I think the crux of the problem is that the original tenets of organic agriculture were set by some scientists a hundred years ago, but also people like Rudolph steiner who was an occultist. There's still a mix of actual science and hippy pseudoscience mixed in to this day. For example, the focus on only "natural" pesticides means using compounds that have higher runoff, persistence in the soil, and broader impacts to insect life. I wish that there was more flexibility for OA standards to change to the best evidence that we have.