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JumpCrisscrosstoday at 3:46 PM1 replyview on HN

> an example of a super-volcano is Yellowstone National Park, so I agree we can't prevent them

We absolutely can, and extract geothermal energy from the system to boot.


Replies

ben_wtoday at 4:27 PM

Are you sure?

Everything I've seen suggests that the thermal mass of the Yellowstone magma reservoir is order-of 10km each way (so 1000km^3 total), density order-of 3 kg/litre, and heat capacity order-of 1500 J/kg K, so lowering the temperature of that reservoir by 100 K would still yield about the entire world's energy consumption in 2017: https://www.wolframalpha.com/input?i=1000km%5E3+*+3kg%2Fl+*+...

Even though this would combine both left-coded and right-coded aspects of the USA's politics (right: the USA's love of energy intensity; left: in this scenario it helps the environment not be made of fire), I find it dubious that the US would (or could) construct enough power plants to reach that scale.

(China might even want to help, but at this point I find myself too cynical of both China and the USA for that to happen even in an emergency).