this post was submitted on 21 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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Black and white cartoon. Left panel: a group blocks a road with a banner reading "No new oil | so there's a liveable planet for our children." Right panel: A boardroom, with members of the board raising their hands. In front of them is a chart showing planned oil extraction going well above a dashed line marked "Level beyond which there will be no livable plant for our children.

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[–] subignition@kbin.social 5 points 1 year ago

Fossil fuels needed to be the embarrassing, temporary stopgap to renewables and nuclear... instead we shut our eyes and ears and told ourselves it would meet all our needs. We should have started connecting the planet with railways fifty years ago in preparation for cleaner energy. Cars ought to be as unnecessary and shameful as private jets, and freight shouldn't exist if it can't be done very cleanly... I suppose hindsight is 20/20 but we're not at a point where we can make any of those transitions without huge amounts of pain now.