this post was submitted on 11 Mar 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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[–] gandalf_der_12te@discuss.tchncs.de 1 points 3 hours ago (2 children)

basically the caverns that are being considered/used for this are the same caverns that natural gas was extracted out of in the first place ... they clearly held some sort of gas fine for millions of years, so certainly they're gonna store a bit of hydrogen too.

[–] Passerby6497@lemmy.world 1 points 1 hour ago

they clearly held some sort of gas fine for millions of years, so certainly they’re gonna store a bit of hydrogen too.

Not to rain on your parade, but hydrogen and natural gas aren't really comparable for storage. The natgas molecule is 8x heavier and MUCH larger than a molecule of hydrogen. Just on the size alone, hydrogen can slip through just about everything and needs to be stored at cryogenic temperatures. I don't think rock is going to be as good of a storage media as you'd assume.

[–] boonhet@sopuli.xyz 1 points 2 hours ago (1 children)

Oh that makes sense.

We just don't have any natural gas production in Estonia lol. Perhaps the shale mines could be used. Unfortunately the biggest one had its permit extended till 2049 recently. Also I think they get filled with water naturally (they pump out a lot of dirty water), so I suppose the walls aren't actually completely sealed naturally.

[–] gandalf_der_12te@discuss.tchncs.de 1 points 1 hour ago

yeah, geological availability might vary