this post was submitted on 27 Nov 2024
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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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Unexplained Heat-Wave ‘Hotspots’ Are Popping Up Across the Globe (news.climate.columbia.edu)
submitted 13 hours ago by solo@slrpnk.net to c/climate@slrpnk.net
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Distinct regions are seeing repeated heat waves so extreme, they cannot be explained by climate models.

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[–] Lodespawn@aussie.zone 1 points 10 hours ago (1 children)

I feel like the big one in western Australia is pretty easily explained .. that's a big ole desert and we are moving in to summer ..

[–] zerakith@lemmy.ml 7 points 6 hours ago (1 children)

Not sure how serious this comment is but these are anomalies against expected behaviour from models. These models include historical data with the addition of how we expect the changes we are making to impact it with the best knowledge we have of how the systems work.

So its not saying its surprising that Australia is hot this time of year it's saying it markedly hotter than we expect or can explain using everything we understand about the climate.

[–] Lodespawn@aussie.zone 1 points 1 hour ago

Yeah I didn't read the article, that sounds fair