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Humans have caused 1.5 °C of long-term global warming according to new estimates

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399 points gmays | 2 comments | 17 Nov 24 18:49 UTC | HN request time: 0.001s | source
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oezi ◴[17 Nov 24 19:06 UTC] No.42166179[source]▶
Looking into the numbers a couple if months ago I was surprised how little it costs to stop climate change.

On the order of 100-200 trillion USD. Which is roughly 100-200% of global yearly GDP. Or 2-5% of yearly GDP until 2050. This could well be provided by printing money at all the federal reserve banks.

This investment will likely bring in a positive return on investment because it reduces the negative climate impacts.

Without such investments the downstream costs in climate change adaptation will be very expensive

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ein0p ◴[17 Nov 24 19:12 UTC] No.42166244[source]▶
And the question is, then, what if you spend all those trillions (which we don't have, BTW), and it doesn't "stop". Who's going to be responsible, and in what way?
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1. silver_silver ◴[17 Nov 24 20:17 UTC] No.42166818[source]▶
The CO2 concentrations we’re approaching also cause cognitive impairment
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2. gruez ◴[17 Nov 24 21:23 UTC] No.42167426[source]▶
Those studies are... questionable, considering that US submarines have an order of magnitude higher concentration and the sailors on board don't turn into drooling idiots.

https://nap.nationalacademies.org/read/11170/chapter/5