this post was submitted on 10 Jan 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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As a Climate Scientist, I Knew It Was Time to Leave Los Angeles (www.nytimes.com)
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[โ€“] supersquirrel@sopuli.xyz 2 points 1 week ago* (last edited 1 week ago) (1 children)

Yeah on the ecological side I saw a study that found a single intense pulse of stormwater runoff, especially after a dry period where surface/roadway pollutants have built up, can be fatal to young salmon even if normal pollution into those waterways and groundwater is extremely clean and well managed. It is a pattern of awful chaos and shock that echoes and echoes until systems shatter apart and you can't see it coming if you only look at the changing averages and baselines.

[โ€“] shalafi@lemmy.world 3 points 1 week ago* (last edited 1 week ago)

Exactly the sort of thing I'm talking about. On one hand, our environment seems far hardier than we thought. On the other, it cannot take these non-stop shocks, year after year after year.

Read my example? Two years is enough to decimate and reconfigure the insects in my tiny area.