this post was submitted on 06 Nov 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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Can Seawalls Save Us? Huge coastal barriers could protect the world’s cities. But they’ll have unexpected costs. (www.newyorker.com)
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The oldest known seawall was built around 5000 B.C., after a period of warming that melted glaciers and lifted the Mediterranean by a staggering twenty-six feet. A Stone Age community, living near a beach in present-day Israel, tried to ward off the sea with a wall of three-foot-tall boulders about the length of a football field. But, in the millennia that followed, the Mediterranean rose even more. Archeologists ultimately discovered the stones on the seafloor, under ten feet of water. The site, they wrote, was “ominously relevant” to our time.

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[–] NihilistBohr@lib.lgbt 1 points 1 year ago

It’s cool. No need to consider our impact on the planet that sustains us. Just keep propping up shitty legacy systems.