this post was submitted on 02 Mar 2025
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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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Geothermal Power Is a Climate Moon Shot Beneath Our Feet (www.newyorker.com)
submitted 1 day ago by kalkulat to c/[email protected]
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"This road is long, and much of the map remains blank. The biggest problem is drilling miles through hot rock, safely. If scientists can do that, however, next-generation geothermal power could supply clean energy for eons."

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[โ€“] kalkulat 2 points 19 hours ago* (last edited 19 hours ago) (1 children)

There is A LOT of radioactive matter below the earth's surface ... constantly generating heat.

"About 50% of the Earth's internal heat originates from radioactive decay. Four radioactive isotopes are responsible for the majority of radiogenic heat because of their enrichment relative to other radioactive isotopes: uranium-238 (238U), uranium-235 (235U), thorium-232 (232Th), and potassium-40 (40K)." - https://en.wikipedia.org/wiki/Earth%27s_internal_heat_budget

[โ€“] [email protected] 1 points 13 hours ago

Fission is a form of decay, but its relatively rare compared to the other more typical modes of devay.

Spontaneous fission is relatively rare, because it is usuallly restricted to superheavy elements, which are fairly rare and short lived.

https://en.m.wikipedia.org/wiki/Spontaneous_fission

It was a needlessly pedantic nitpick though.