this post was submitted on 30 Jun 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.

Recommended actions to cut greenhouse gas emissions in the near future:

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Hurricane Beryl is intensifying at an unprecedented rate. What to know. (wapo.st)
submitted 5 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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There is no precedent for a storm to intensify this quickly, nor reach this strength, in this part of the ocean during the month of June. Records date to 1851.

While flukes happen, there is a firm link between rapid intensification (the strengthening of hurricanes) and human-induced climate change. Ocean waters are running 3 or 4 degrees above average, reminiscent of August rather than June. In some cases, records are being set. It’s unsurprising that the atmosphere is responding accordingly.

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[–] Treczoks@lemmy.world 6 points 5 months ago

The big question is: Will this thing die off in Yucatán, or march right across it, power up again, and hit Mexico? Like hurricane "Lee" did in 2023. How is the water temperature in the gulf at the moment?