this post was submitted on 03 Aug 2024
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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.

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A critical system of Atlantic Ocean currents could collapse as early as the 2030s, new research suggests (www.cnn.com)
submitted 3 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] Mikina@programming.dev 5 points 3 months ago

What exactly would the collapse cause? Article mention polar ice creeping up to northern England, and temperatures dropping. Would it mean that you'd basically get ice age in half of Europe? How I understand it, you'd gat extreme cold in the north, and extreme (not survivable) hot around the equinox. So, mass migration from both into the central eruope, where the weather would be extreme hot but survivable in summer, and super cold in winter? More storms, typhoons, and in general a really bad time, due to drought and crops gerting fucked?