this post was submitted on 28 Aug 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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‘Off-the-charts records’: has humanity finally broken the climate? (www.theguardian.com)
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[–] [email protected] 6 points 1 year ago (1 children)

Even if we hit all the reduction goals as they stand now worldwide. We'll still deplete world oil and gas reservoirs between the century. The damage is done. Humanity made a decision about 120 years ago and we chose wrong. Even if we all died right now and all fossil fuel burning, industrial agriculture and extraction stopped all at once. It would still take the ecosphere a couple of centuries just to course correct, let alone return to the climate patterns of two centuries ago.

Let me tell you the quiet part out loud. Some rich countries individually might be hitting their climate goals. But worldwide overall we are way behind. So buckle up, it will get worse.

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

We're not where we need to be in order to limit warming to 2C, but we're doing a lot better than we were a decade ago, when it looked like 4C by 2100 was likely.