this post was submitted on 24 May 2026
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Climate

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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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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India is being left to die in the heat | Modi has denied climate change for years. Now, as the death toll climbs uncounted, his government offers branding instead of protection. (www.aljazeera.com)
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[–] Grainne@lemmy.dbzer0.com 2 points 23 hours ago (3 children)

Australia is mostly ruined in the top 3/4. The bottom section where most of the people live will be relatively okay.

[–] Tiresia@slrpnk.net 1 points 16 hours ago

The >50⁰C heat waves in Melbourne when the wind is northwesterly in summer aren't going to be fun. By the end of the century there could be occasional fatal wet bulb temperatures.

(the current record is 46⁰C in 2009, but extremes get more extreme)

[–] Tollana1234567@lemmy.today 1 points 17 hours ago

the outback is expanding i heard.

[–] BloodMuffin@lemmy.ca 2 points 21 hours ago (1 children)

When sea levels rise enough all the coastal cities will be gone

[–] Grainne@lemmy.dbzer0.com 2 points 19 hours ago

Elevation levels are not the same across the world.

At an extreme 10 metre rise, nearly all of Bangladesh will be under water while Melbourne and Sydney will only lose a small bit of land.