this post was submitted on 02 May 2025
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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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[–] [email protected] 62 points 23 hours ago (2 children)

Being an old man this really gets me. I love the internet and the way computers today but there is a whole lot that worked fine before plastics were so common. Almost nothing in the grocery store had plastic and everything was pretty much as convenient as nowadays. Sure you had to pay a deposit on the glass bottles but you got it back when you returned them.

[–] [email protected] 5 points 5 hours ago (1 children)

If I had to choose glass or plastic, I am always choosing glass. Glass is such a good material. It is infinitely recyclable, the bottles can be reused for several years, and if they are buried they don't release microplastics.

[–] [email protected] 2 points 2 hours ago

It depends on which aspects of the environmental impact you're looking at, as melting glass to recycle it can be much more damaging than landfilling several plastic bottles if the glass furnace is heated by fossil fuels. If glass bottles are washed and reused, they're much better than plastic, but that's rarely what happens.

[–] [email protected] 13 points 20 hours ago

That's still the way it works in Denmark, but with plastic bottles too. Something like 98% of all bottles are recycled.