this post was submitted on 16 Jul 2026
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Climate

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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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Air quality across the Eastern US & Canada right now (lemmy.nz)
submitted 1 week ago by fireweed@lemmy.world to c/climate@slrpnk.net
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Screenshot taken from PurpleAir. 150 and above is considered unhealthy, 300 and above is considered hazardous.

https://map.purpleair.com/air-quality-standards-us-epa-aqi

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[–] peteypete420@sh.itjust.works 1 points 1 week ago (1 children)

Definitely isnt a state between Ohio and New Jersey

[–] Dozzi92@lemmy.world 1 points 1 week ago* (last edited 1 week ago) (1 children)

I've always said New York City and Philadelphia ought to belong to New Jersey, and this map seems to have taken my advice.

[–] peteypete420@sh.itjust.works 2 points 1 week ago (1 children)

Thank makes zero sense to me, but it did make me giggle.

[–] Dozzi92@lemmy.world 1 points 1 week ago (1 children)

I say it jokingly, but Upstate NY and Pennsyltucky have less in common with their big cities than New Jersey does. So it's half joking, but 100% serious.

[–] peteypete420@sh.itjust.works 1 points 1 week ago

Pennsyltucky! I love seeing that term in the wild. But yea I get you.