this post was submitted on 18 Nov 2024
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[–] burgersc12@mander.xyz 50 points 23 hours ago* (last edited 23 hours ago) (12 children)

I love to think about the fact that the graph for CO2 is like this

And we are literally in uncharted territory for how fucked shit will get and how quickly it will go, these types of carbon jumps usually take hundreds or thousands of years, not decades. At present we are about 1.3°C above the baseline 1850, and this will only continue to accelerate until we hit about 3-4°. We have triggered a feedback loop, which at this point seems to be irreversible. More carbon, more methane are inevitable even if we stop all output of these harmful gases at this very moment.

[–] ddplf@szmer.info 0 points 22 hours ago (7 children)

How was the data shown in this graph aggregated? How do you measure CO2 emission 500 000 years back?

[–] coffee_whatever@lemmy.world 27 points 22 hours ago

When ice forms, it traps small airpockets in it, so we take samples of ice from the polar circles kilometres deep, date it, crush it to release the air pockets and measure the air contents. Then we can see how different the CO2 amounts were to now.

Source: there's a fuck ton of different articles that talk about this, and this is the first one I found of Google, search yourself for more.

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