this post was submitted on 21 Nov 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 harbinger of what's to come:' NASA satellites show massive drop in global freshwater levels (www.livescience.com)
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Global fresh water demand will outstrip supply by 40% by 2030

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[–] thatKamGuy 17 points 3 days ago

It more surprises and saddens me that we are less than 2 generations divorced from when we as a species were able to band together and ban CFCs to address the hole in the Ozone Layer, as well as sulphurous compounds to eliminate Acid Rain - yet we’ve flown right past ‘fuck around’ without seemingly batting an eye, and are barrelling towards ‘find out’ territory when it comes to Climate Change..