this post was submitted on 26 Sep 2023
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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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Renowned climate scientist Michael E. Mann on what ‘doomers’ get wrong » Yale Climate Connections (yaleclimateconnections.org)
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[–] Honytawk@lemmy.zip 2 points 2 years ago (1 children)

Both the acid rain problem and the hole in the Ozone layer were things humanity dealt with through the correct regulations. Both are non-issues at the moment. The hole is even healing.

We can and will do so again.

Thinking it won't change is a self-fulfilling prophecy.

[–] SkyeStarfall@lemmy.blahaj.zone 6 points 2 years ago

Both were simple problems with simple solutions, and they also weren't politicized. Climate change is maybe the hardest problem humanity has had to face so far, and it asks us to go directly against the economy we have set up here on earth. We require degrowth to truly stop climate change. Our economy demands the exact opposite.

Acid rain and ozone layer holes didn't require systemic change. Stopping climate change demands it.

That's not to say it won't happen. I'd absolutely love to see it happen. But it needs something more drastic than just positive thinking and individual changes in behaviour. It needs a borderline revolution.