this post was submitted on 13 May 2026
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Climate

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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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San Francisco Bay Area air regulators split on whether to move forward with ban on gas water heaters that will cost homeowners $3,500 (www.mercurynews.com)
submitted 3 days ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] TheGoldenV@lemmy.world 9 points 3 days ago (2 children)

I’m calling BS on $3500 _extra and the lack of justification in the article reinforces my belief. Then when I tried to go back the site tried to retain me twice. Indications of a junk source.

[–] Cort@lemmy.world 2 points 1 day ago

If someone is going from gas to the highest end heat pump, I could see an extra 3500 being possible with higher cost for the heater itself as well as the extra labor to install a new electrical outlet.

But that's a worst case scenario. There are a few newer heat pumps that can use a standard 120v/15a outlet, and that would be much cheaper

[–] silence7@slrpnk.net 9 points 2 days ago

It's the main newspaper in San Jose, so probably about as reliable a source of news as you're going to get. The author is their senior environmental reporter too.