this post was submitted on 09 Sep 2024
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

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[–] [email protected] 4 points 2 months ago (2 children)

Well, quite. They don't appear to have windows or doors either (doorways, yes, but not doors), and they have holes in the roof. Yet the article mentions "homes" about a million times.

It's almost like somebody who didn't have any knowledge of construction had the idea of 3D printing buildings. Probably in the shower.

I notice that they fill the walls with natural fibers by hand (see the photo) - so they must pause the printers at regular intervals and get a ladder to get up to the top parts. So even what we see isn't entirely 3D printed.

[–] [email protected] 2 points 2 months ago

I'm pretty sure about one third of the population of earth would be absolutely ecstatic to call that "home" and we're very lucky to consider it not to be

Also, this basic concept is how Alpine chalets are built, and they're incredibly well insulated against cold and heat

This'll be world-changing in ten years

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

You're being pedantic about the word "home" and whether they're fully 3D printed, and I'm not sure why. A home is a place where people live, and whether they have windows or doors is not relevant to that point. The point of the design is that they don't have to have those things, and they're considering ongoing problems like climate change; the western ideal of a "home" is actually an impractical design when you start to consider the environment as it is.

And yes, they have to infill the insulation. Nobody is claiming these homes are built without human intervention.

Are you just trying to find weird ways to shit on a thoughtful way to help people?

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

The things they have chosen as demonstrators have holes in the roof! They are not suitable as homes by any reasonable definition. I also think that light and security are necessary for a home. Certainly if you are trying to improve on an existing "subpar dwelling".

If they wanted to demonstrate how they can 3D print homes in rural Colombia, why didn't they print something that would be suitable to be a home in rural Colombia? They only had to load a different model into the printer, right?

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

Do you think that these might be some of the subpar dwellings that they're talking about: https://southamericabackpacker.com/exploring-slums-of-medellin-colombia/ ?

No, I'm not serious. Of course they don't need roofs or windows or multiple storeys. I'm just joking about that stuff.

[–] [email protected] 0 points 2 months ago

That's what I thought. Bye.