this post was submitted on 26 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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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We might be closer to changing course on climate change than we realized (www.vox.com)
submitted 7 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 14 points 7 months ago (1 children)

The messaging on this topic is interesting

too doom and gloom and you can turn people off, since it seems hopeless. Too rosey, and you come across as a science-denying dolt.

The hedline+lede here seem to strike a nice balance.

[โ€“] [email protected] 6 points 7 months ago

They definitely tried to strike a balance but they didn't account for climate science itself tending to be too optimistic because certain mechanism may still be unknown. They didn't even mention the possibility of tipping points/runaway events. And they focused entirely on the electric grid (not on heating, transportation, agriculture, etc.).

I think they're right about electric grids overall getting cleaner though. Basically, I guess, we just need China to stop building coal plants at this point. That point can't be too far out, given the economies.