this post was submitted on 09 Apr 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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Tenth consecutive monthly heat record alarms and confounds climate scientists (www.theguardian.com)
submitted 7 months ago by lemat_87@slrpnk.net to c/climate@slrpnk.net
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[–] moitoi@lemmy.dbzer0.com 5 points 7 months ago (2 children)

I don't see the issue. Climate isn't an engine or whatever. It's a complex system that we don't know how it fully works. Human introduced and introduces changes in this system. We barely understand all the effects these changes have as we don't know how it fully works.

Of course, we can only assume the consequences.

[–] towerful@programming.dev 8 points 7 months ago (1 children)

While i agree, unfortunately these models (hopefully) drive politics.
Politicians will do the minimum they can get away with. Thats both human nature and capitalism.
If the models undershoot (climate change accelerates faster than scientists predict), the world is fucked.
If the models overshoot (panic etc, and it ends up being a nothingburger), people will stop trusting models.
If the models are spot on, action is taken, and everything is fine... Everyone doubts the models and the hype - despite the fact the threat was understood, acted on and fixed, and a catastrophy averted (think y2k)

I think we are pretty fucked, tbh.

[–] Jax@sh.itjust.works 5 points 7 months ago

I think that human ingenuity still has a chance. We need to stop letting psychopaths lead, though.