this post was submitted on 21 Jul 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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Does ‘compostable’ plastic actually break down? Here’s what to know. (www.washingtonpost.com)
submitted 2 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] lnxtx@feddit.nl 4 points 2 months ago

But the article about the EN 13432 norm says:

The test criteria include:

  • Biodegradation – measures the packaging material’s rate of metabolic, microbial conversion into water, carbon dioxide, mineral salts of any other elements present and new cell biomass.
  • Disintegration – packaging material is mixed with organic waste for 12 weeks, after which time, no more than 10 percent of material fragments are allowed to be larger than 2 mm.
  • Toxic substances – there must be a minimal negative effect on the quality of the resulting compost.
  • Ecotoxicity effects – compares compost produced with and without the addition of packaging material.

I'm confused.