this post was submitted on 15 Aug 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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In these new Catskills homes, no fossil fuels are allowed | The all-electric, solar-powered homes are designed using passive house principles. (yaleclimateconnections.org)
submitted 4 months ago by [email protected] to c/[email protected]
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[–] [email protected] 2 points 4 months ago (3 children)

Is it possible to scale it up, like a condo? To limit the urban sprawl?

[–] [email protected] 7 points 4 months ago* (last edited 4 months ago) (1 children)

It really isn't all that special (though I started to skim it). Triple pane windows, heat exchanger on hvac, solar panels.

[–] [email protected] 5 points 4 months ago (1 children)

I wonder if they also have awnings over south facing windows. It's an old practice (in the Northern Hemisphere) to reduces summer sunlight but allow the winter sun to come through the windows

[–] [email protected] 3 points 4 months ago

The Passive House concept by itself can scale up. However, it is expected that you might need to bring in more power from elsewhere at one point when solar alone isn't sufficient to cover local demand.

[–] [email protected] 2 points 4 months ago

Somewhat; the highest-density housing is going to be a net consumer of energy from elsewhere though.