this post was submitted on 13 Jan 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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We’re over-freezing our food. Turning up the temperature slightly could avoid 17 Mt of CO2 (www.anthropocenemagazine.org)
submitted 10 months ago* (last edited 10 months ago) by cerement@slrpnk.net to c/climate@slrpnk.net
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“This temperature corresponds to 0 degrees Fahrenheit, so it was “probably a round, easy number to remember”

That’s what Allouche and team will be working on next, as they build their research summary into a full report, to be published in September 2024. “These findings give good reasons for ‘3 degrees of change’ to be further explored,” Allouche says.

Three Degrees Of Change: Frozen food in a Resilient and Sustainable Food System (PDF)

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[–] ininewcrow@lemmy.ca 6 points 10 months ago (1 children)

As an indigenous Canadian that grew up poor, in about December, dad would transfer a large stock of our frozen food to the large capacity refrigerator next to wood pile outside our house. It wasn't powered by anything, the cold winter weather was enough to keep everything frozen for months.

I live in northern Ontario and when I think about that, I find it so strange that I live in a house that is kept warm to protect me from freezing temperatures outside while at the same time I spend a good amount of energy to have an appliance inside my warm house to keep my food frozen. You'd think in Canada someone would have figured out a way to harness that cold from outside for part of the year.

[–] LilNaib@slrpnk.net 4 points 10 months ago

You’d think in Canada someone would have figured out a way to harness that cold from outside for part of the year.

Look into the "cool cupboard" associated with David Holmgren, who talks about it in his book Retrosuburbia. IIRC it uses simple geothermal and natural convection to keep certain foods cool.

I live in a cold place and lately I've been taking water jugs outside to freeze, then bring them in once I go out in the morning. With them, the fridge hardly runs any more. I'd prefer something automatic like a cool cupboard for certain things and a well insulated fridge running straight on DC solar.