this post was submitted on 20 Jun 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.

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

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[–] Krono@lemmy.today 49 points 5 months ago (2 children)

How do you think those rocks will fare when the average temperature rises a few degrees?

Do you think the big stones will avoid damage while humans are fighting wars over water?

Are those precious rocks going to be ok when countries near the equator become uninhabitable, and the UK has to violently defend its borders from millions of climate refugees?

Do you think it can still be considered a cultural heritage site after all the humans are dead?

[–] nilloc@discuss.tchncs.de 6 points 5 months ago* (last edited 5 months ago)

It’s going to be too cold to visit once the Gulf Stream stalls from reduced ocean salinity, and Britain’s climate is more like northern Canada or Alaska.