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As record heat risks bleaching 73% of the world’s coral reefs, scientists ask ‘what do we do now?’ (www.theguardian.com)
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[-] tdawg@lemmy.world 4 points 3 months ago

I think it's important to acknowledge that systemic change needs to happen. But for those of us in a position to have the space and means for it we should be actively supporting green efforts to the fullest extent of our resources. Personal responsibility adds up when you talk about millions of people

this post was submitted on 29 Jul 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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