this post was submitted on 11 Oct 2023
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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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xkcd : Earth Temperature Timeline (imgs.xkcd.com)
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cross-posted from: https://programming.dev/post/4245345

https://xkcd.com/1732/

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[โ€“] silence7@slrpnk.net 36 points 1 year ago (1 children)

Definitely a classic. Follows closely what's in the academic literature

(note that this graph changes x-scale for the past 1000 years)

[โ€“] Avanera@kbin.social 14 points 1 year ago

Sharing this graph casually is rather unhelpful despite your note, since most casual observers aren't going to observe the scale change in the X axis, and instead will see only that today is similar to the 12,000 years ago segment.