this post was submitted on 04 Apr 2024
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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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Just 57 companies linked to 80% of greenhouse gas emissions since 2016 | Analysis reveals many big producers increased output of fossil fuels and related emissions in seven years after Paris accord (www.theguardian.com)
submitted 7 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Note that this represents who extracted, rather than who burned. Responsibility for burning fossil fuels is much more broadly distributed.

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[–] jeffw@lemmy.world 3 points 7 months ago* (last edited 7 months ago) (1 children)

Am I reading this correctly? The headline sounds misleading. 80% of fossil fuel and cement GHGs, which is all the linked database appears to track. It doesn’t touch on other industries or contextualize what portion of total GHGs come from those industries (obviously a lot, but how much?)

[–] vin@lemmynsfw.com 1 points 7 months ago* (last edited 7 months ago)

8% of ghg is due to making cement and about 75% of ghg is from fossil fuels. So about 66% are from the 57 companies.