this post was submitted on 10 Apr 2024
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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.

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“There’s no ambiguity about the data,” said Gavin Schmidt, a climatologist and the director of the NASA Goddard Institute for Space Studies. “So really, it’s a question of attribution.”

Understanding what specific physical processes are behind these temperature records will help scientists improve their climate models and better predict temperatures in the future.

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[–] rambos@lemm.ee 5 points 8 months ago (1 children)

I thought its more than 1C since 1981

[–] c0mpost 7 points 8 months ago (1 children)

Remember this is water, which has a much greater thermal capacity than air.

[–] rambos@lemm.ee 3 points 8 months ago (1 children)

Yeah, I didnt mean its not much, but was sure the increase was higher (source: thoughts while taking shower hehe). Thx for clarifying!

[–] fushuan@lemm.ee 1 points 8 months ago* (last edited 8 months ago)

Water needs x4 energy of what air needs to increase the same amount of temperature iirc, so.. In air differences it's almost 2°C at some points and almost 1 at others, it's super worrying.