this post was submitted on 23 May 2026
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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.

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The Brazilian Supreme Court Makes Way for the ‘Grain Train’ (insideclimatenews.org)
submitted 2 days ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Environmental and Indigenous activists say the railway, if it proceeds, will unleash an explosion of carbon and further imperil the world’s biggest and most climate-critical rainforest.

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[–] ptc075@lemmy.zip 9 points 2 days ago (3 children)

I know nothing about this particular case. But trains are usually MUCH better for the environment than trucks, which is what they apparently use today. The articles I'm finding make it sound like the train tracks are gong to parallel the existing roads, so shouldn't be a significant incursion to the wildlife.

If this was really a 1:1 exchange, environmentalists ought to be supporting this. I note they are not, which means something's not adding up.

[–] alavar@slrpnk.net 4 points 2 days ago

The are shrinking the protected areas along the railway - the whole thing is obviously not just about the train but about clearing more forest for soy farms (and making the process more profitable because trains are indeed MUCH more cost efficient than trucks)

[–] silence7@slrpnk.net 6 points 2 days ago

I think the expectation is not that it's a 1:1 exchange but that the train moves a lot more cattle feed, resulting in deforestation of a larger area when what needs to happen is a restoration of areas currently under cultivation to rain forest

[–] RIotingPacifist@lemmy.world 2 points 2 days ago

Induced demand doesn't just apply to freeways