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[meme] How would you rather see this land developed?
(lemmy.world)
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this post was submitted on 06 Sep 2023
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Yes, let's pack people in a dense area where diseases and tempers can and will run rampant because THAT has never happened before.
Sorry, I refuse to live on top of other people. Housing is not the enemy of nature - housing that is not in tune with nature is. It is completely possible to build homes that blend in with nature without having to resort to ultra-dense, 5-story brick behemoths filled with people who loathe one another.
I see what you are trying to convey, and I agree with you to an extent, but density is not the answer to sustainable housing.
Housing is fine, several of my personal heros lived in rural commues far away from society, where they are mostly self-sustained. They dont live in apartments, but there is no doubt I have great respect for them and believe they live in a very responsible fashion.
The problem came when people want to live in the middle of nowhere, produces nothing for their own, pays low taxes; yet think society owes them giant road infrastructure and wasteful parking lots. So that they can terrorize the lives of pedestrians and cyclists, also our dying planet, just because only their oversized driveway princess and their ecological hellhole of a lawn can give them a little sense of achievement in their otherwise fruitless life.
Density reduces emissions. Low-density, car-dependent suburban sprawl is extremely unsustainable for the planet.
https://coolclimate.org/maps
I reply to your infographic with a scientific paper that shows higher densities lead to higher CO2 emissions: https://www.mdpi.com/2073-4433/12/9/1193#:~:text=Regarding%20CO2%20emissions%2C%20the,density%2C%20the%20higher%20the%20emissions.
This study was done in Spain.
Another study, in Nature, also shows that lower density is better for reducing carbon emissions and climate change. https://www.nature.com/articles/s42949-021-00034-w
Sorry, but you and your infographic/sources are not supported by science.
Literally the frist sentence in the abstract:
"higher densities lead to higher CO2 emissions" you say...
The low density/low height example in the nature article is still 5k people per Km^2. While definitions vary wildly, I usually see 1000-400 people per km^2 for suburb definitions.
Does example D look like suburbs to you? As something undefined it could be considered suburbs, but probably "streetcar suburb" in the Canadian/American context.
Critically the article also mentions a requirement for best practice greenery management to maximize carbon sequestration. I'm no botanist, but I'm guessing caretaken parks do better then monoculture lawns (assumption).
Edit: missed that the first link was a different study. That like on spanish cities has its lowest density group defined as <100 pop/hectare, if my math is right, that means <10,000 pop/km^2. Significantly denser than any suburb. This is also a region when thermal energy is spent of cooling, not heating. And while it adjusts for climate effect, it doesn't seem to adjust for the modernity/thermal effectiveness of the buildings. Such to say, a building with an air-conditioner will spend more thermal energy than one without.
Basically your two links are showing that cities can be too dense, and there is a point when they lose GHg efficiency. There is no mention of anything lower than what, as a Canadian, I would still call high density (just not super high density).
It'd probably depend on the park and how it's designed/managed, but I'd be shocked if monocultured lawns sequestered any carbon. I know in agriculture it's a huge problem that industrially-grown monocultures -- where they till the soil and crop-dust fertilizers and pesticides and herbicides and fungicides -- emit huge amounts of previously-sequestered soil carbon. A result is that doing the reverse -- i.e., growing food regeneratively in polycultures and without tillage and artificial fertilizers and without all the -icides -- is considered a good way to sequester carbon.
Considering we grow grass lawns similarly to how we grow corn monocultures, I'd bet grass lawns are similarly awful for the soil and thus the climate as well.
I'm obviously biased by the parks I live near and see/use every day, but when I think of a park, I think of tree'd sitting areas, tree'd play areas, tree'd walking paths, and some monoculture sports fields, with trees for the stands.
There are lost of community gardens around, but as a black thumb I don't use them and bias them out.
Basically my city has a hard on for trees in parks, and I'm all for it. I also think I've developed a bias that roads have no trees, and streets have trees.
https://coolclimate.org/maps
Feel free to zoom in on essentially every city in America. You can even download the raw data yourself.
Further, your Nature study you link, actually read the paper and you find this nugget:
It literally doesn't even model transportation emissions. Considering this whole conversation is about sprawl causing more cars, this is kinda a glaring omission.
I'd like to come back and read over this later. The point OP is making seems pretty obvious but it is quite directly contradicted by the sources you just provided. I want to read those later
From a quick read of the Nature article they posted:
It doesn't even model transportation emissions, which kinda makes it worthless in the context of this discussion.
As for Spain, does Spain even have much "suburbia" as we understand it in a North American context? Data for cities in Spain may have nothing to say about the emissions of suburban sprawl vs denser communities, which is what the OP is mainly about.
The fact that your immediate first association with dense housing is disease is rather telling