this post was submitted on 31 Jul 2023
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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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America Needs To Install A Lot More Heat Pumps (www.distilled.earth)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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I'll note that this post is paywalled, but the key facts are outside the paywall.

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[–] [email protected] 1 points 1 year ago

When I installed new equipment, I installed a heat pump instead of an A/C as a future proofing move. The furnace I installed is 98% efficient the heat pump is a 9.7 HSPF unit. With the current prices of gas and electricity it will never be cheaper to run the heat pump. I knew that going in, but decided a dual fuel setup was worth a little additional cost in case fuel prices change or I install solar. That was before the current incentives, I'm not sure what they have done to the pricing. With the previous federal incentives and local incentives I only paid a few hundred dollars over a comparable A/C unit.