this post was submitted on 08 May 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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Planet is headed for at least 2.5C of heating with disastrous results for humanity, poll of hundreds of scientists finds | Planet is headed for at least 2.5C of heating with disastrous results (www.theguardian.com)
submitted 6 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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I'll note that 2.5°C of warming by 2100 is a significant improvement over the trajectory we were on a decade ago, even if still far from where we need to be

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[–] Serinus@lemmy.world 47 points 6 months ago (3 children)

2.5C is a conservative estimate.

[–] WhatAmLemmy@lemmy.world 20 points 6 months ago

Considering we're essentially at 1.5c now (over a decade ahead of the IPCC's estimates), I'm almost certain we'll hit 2.5c well before 2050.

[–] Dkarma@lemmy.world 13 points 6 months ago (1 children)

And we know conservatives are pretty much never correct.

[–] Sir_Kevin@lemmy.dbzer0.com 2 points 6 months ago (2 children)

They mean that literally, not politically.

[–] grue@lemmy.world 6 points 6 months ago (1 children)

I've heard it both ways. 🍍

[–] ayaya@lemdro.id 3 points 6 months ago

You know that's right.

[–] PoolloverNathan@programming.dev 6 points 6 months ago

!woooosh@lemmy.world