this post was submitted on 17 Jun 2025
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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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The key thing here is that the less overshoot the better, and the amount of overshoot we can afford is small.

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[–] collapse_already@lemmy.ml 6 points 1 day ago (2 children)

No one with any political power is even remotely trying to prevent that. Maybe we can have a huge war that kills billions to slow the rate of ascent. It is the most likely path that actually results in a timely emissions reduction that is politically tenable (see Iran v. Israel and Pakistan v. India for potential starting points, Ukraine v. Russia could escalate too, I suppose).

More likely, the climate will start killing us in greater quantities (famines, floods, hurricanes, droughts) resulting in an emission reduction. Eventually, it is a self correcting problem, but that most likely outcome maximizes suffering.

[–] astropenguin5@lemmy.world 4 points 1 day ago (1 children)

Well Iran vs Israel is already happening and escalating into probably a forever war but I doubt war will help climate change War itself also causes a fuck ton of emissions and environmental damage

[–] collapse_already@lemmy.ml 1 points 12 hours ago

It hasn't really ramped up to anywhere near the levels I am talking about yet. I am looking at it from a perspective of WW3 woth billions dead before it lowers carbon emissions. Pretty that carbon will not be our worst concern among all of the fallout.

[–] silence7@slrpnk.net 3 points 1 day ago

Xi seems to be putting China on a decarbonization trajectory. Not as fast as we need, but one that's meaningful