this post was submitted on 30 Apr 2024
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Climate - truthful information about climate, related activism and politics.

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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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Water Heaters Use Lots of Energy. The D.O.E. Wants to Change That. The Biden administration is tightening efficiency rules for water heaters, stoves and other appliances (www.nytimes.com)
submitted 6 months ago* (last edited 6 months ago) by [email protected] to c/[email protected]
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Washington Post coverage for comparison

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[–] [email protected] 2 points 6 months ago (1 children)

We switched to an externally mounted tankless when our big ole water heater conked out. It's way more energy efficient, but everyone has to run the water for a good minute until it kicks in and makes it through the pipes

I'll look into a heat pump once this one dies, but running water during a drought is just wrong.

[–] [email protected] 1 points 6 months ago (1 children)

This Old House has episodes where they have a small recirculation pump to keep lines primed with warm water.

[–] [email protected] 1 points 6 months ago

This kills the efficiency gain of not keeping a hot tank though.