this post was submitted on 12 Mar 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Where Heat Pumps Win — And Where They Lose | Five findings from an extremely thorough study by the US National Renewable Energy Lab. (heatmap.news)
submitted 8 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 8 months ago (1 children)

Great for those on the south. Not as great for those of us that have to heat our homes, meaning a furnace or another heat pump needs to make up that heat.

Not that they are bad, mind you, they are quite good, just another part of the economic equation. Makes it more of a home run where you are cooling most of the year anyway.

[–] [email protected] 1 points 8 months ago (1 children)

My water heater is in an unheated basement closet, so technically most of the energy it's getting is geothermal since the walls are always at 50 degrees. It would probably be even more efficient if

Also, since the water heater is inside the house and is constantly leaking heat, it's not really cooling the house very much at all because the heat is still inside, just in an insulated bottle.

[–] [email protected] 1 points 8 months ago

Mine is in my finished, heated basement (which is largely above street grade, so not too much geothermal). And while some heat does go back into the room, much of it goes down the drain when you use hot water.