this post was submitted on 04 Dec 2023
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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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[–] uphillbothways@kbin.social 3 points 11 months ago* (last edited 11 months ago)

People have been talking about reducing carbon output for a while and not doing it because the economics weren't there. Now, it's starting to happen because it's profitable. Solar and wind have become cheap.

It needed to happen sooner and could have been done better. But, idiots platforming idiots isn't really going to change this one way or another. I feel like these climate talks are primarily theatre. Probably always were. But in this case, that makes me hopeful. Why would we listen to a Saudi oil exec when we didn't listen much to scientists explaining the impacts for decades? The money talks and it's beginning to tell a slightly less hopeless story.

https://www.scimex.org/newsfeed/about-40-percent-of-the-worlds-power-generation-is-now-renewable

Today, I choose guarded optimism.