this post was submitted on 09 Jul 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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Can we air condition our way out of extreme heat? part 1: a primer on air conditioning (www.theclimatebrink.com)
submitted 4 months ago by silence7 to c/climate
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[–] ptz@dubvee.org 1 points 4 months ago (2 children)

I don't think we'll ever make any machine that's 100% efficient (electric resistance space heaters aside), but maximizing the efficiencies we can will at least mitigate most of the problems if they're powered by clean energy.

Not sure if ground source heat pumps (which would heat the ground rather than the air in the summer in AC mode) would make a meaningful difference or not.

[–] mojofrododojo@lemmy.world 3 points 4 months ago

Not sure if ground source heat pumps (which would heat the ground rather than the air in the summer in AC mode) would make a meaningful difference or not.

I worry that this will just displace the problem for a generation, and eventually, just as the atlantic ocean has warmed to fucking jacuzzi levels, eventually we won't be able to pour more heat into the ground.

https://apnews.com/article/record-hot-water-florida-coral-climate-change-6414d44c6f120507d3ee37c059fb75cd

[–] 14th_cylon@lemm.ee 2 points 4 months ago (1 children)

I don’t think we’ll ever make any machine that’s 100% efficient

i didn't mean to imply that, it was purely theoretical remark

[–] ptz@dubvee.org 2 points 4 months ago

Yea, I got that :) just building on it.