this post was submitted on 27 Sep 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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Are we underestimating global warming? (www.vox.com)
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[–] mayo@lemmy.world 1 points 2 hours ago* (last edited 2 hours ago)

Shouldn't we put more weight into your friends opinion?

Another person replied to me with a list of things that are a constant in our world. Except 'collapse of civ' which is exactly the kind of conclusion I'm raising doubts on as there isn't as much to support it. Again, focused on regional impacts and not places that are going to be obliterated.

Another person said 'wait till permafrost melts'. This is already baked into models, it's not expected that all permafrost is going to melt everywhere.

Idk. I'm eagerly waiting for AR7 and I'm regularly checking in on a few places. I'm aware of the narrative that IPCC leans towards conservative estimates or is overly optimistic. Internet forums don't seem to offer much to this conversation and it's mostly people echoing what they already believe. I'm not seeing any exceptions to that norm here in this thread.

The few places:

An article/search topic that swayed me a while ago:

I expect that geoengineering is going to happen on a larger scale, it would be counter to how people operate to not pursue that option.