this post was submitted on 28 Feb 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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Carbon dioxide overload, detected in human blood, suggests a potentially toxic atmosphere within 50 years (link.springer.com)
submitted 5 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] Wildmimic@anarchist.nexus 1 points 1 week ago

I agree that this will not be the first thing to kill us off, but i'd say we see things like early onset osteoporosis, malformation of limbs in newborns, increased maternal mortality and generally reduced life expectancy; maybe effects like delayed development in children with correspondingly reduced mental capacity.

Interestingly enough, i just last week saw a statistic that claimed that the first time ever, the youngest generation had an on average (marginally, but statistically relevant) lower intelligence than the one before. There are so many factors that can play into this, so i doubt that there is a measurable causation here, but it's just one more puzzle piece in the large picture how we are shooting ourselves in our feet.

Like i said, the pH levels in the ocean (in combination with the massively rising heat levels there) are a much larger deal. It directly hits the basis of everything requiring oxygen globally, which will also hamper removal of CO2 (exacerbating the problem) and the food chain basis of every life form in the oceans (therefor hitting especially us humans on land depending on fishery), and as we already can see, the oceans are the thing that gets hit first by both the temperature rises and the CO2 levels.