this post was submitted on 03 Feb 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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The sea surface temperature is leaving the chart (climatereanalyzer.org)
submitted 7 months ago by [email protected] to c/[email protected]
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Is this really about a change to maritime fuels? I'm genuinely curious because the change is extreme.

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[–] [email protected] 10 points 7 months ago (3 children)

It's nothing to do with maritime fuels - it's because the sea absorbs a lot of the temperature from the air. This means the air temperature stays lower, but affects marine life.

It has happened as a direct result of climate change.

It's bad. Very bad.

[–] [email protected] 5 points 7 months ago (2 children)

It's nothing to do with maritime fuels

https://www.youtube.com/watch?v=RPAnoSt6FnY&t=1833s

The whole conversation is compelling but here's a direct refutation to your point by one of the coauthors of the 2022 Hansen research

[–] [email protected] 3 points 7 months ago (1 children)

Ok, to summarise, more heat is going doesn't into the oceans because the pollution isn't reflecting it. Got it. But sea temperature rise as a whole is still due to global warming and absorption of heat by the oceans. If the additional heat is being absorbed more by the sea than it was, that's bad. But it's bad anyway.

I've said my piece, I'll leave it to those more knowledgeable to argue further.

[–] [email protected] 3 points 7 months ago

Yeah, that sums it up pretty well.