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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Air quality across the Eastern US & Canada right now (slrpnk.net)
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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[–] razzazzika@lemmy.zip 6 points 1 week ago (2 children)

How are you alive right now? The 400 im stuck in is unsufferable.

[–] save_the_humans@leminal.space 1 points 6 days ago* (last edited 6 days ago)

I was in a very drafty house during two big fires in california, and of course close enough to both our air quality was severely impacted. We had visible smoke in the hallways. A HEPA filter on the back of a box fan in our rooms did wonders. If anyone is in need of cheap option.

[–] GenitalHurricane@lemmy.world 4 points 1 week ago

Being outside earlier today was awful, I had an appointment I couldn't miss, but I've got a MERV13 filter in my HVAC at home running non stop to circulate and filter, one HEPA filter on each floor of the house, and one in my office. Indoor AQI got up to 40 downstairs yesterday so I set all the purifiers to max overnight and I'm down to 10-15 this morning. We are not going outside today lol staying in our safe little bubble