Re:Seeding oceans with volcanic ash could be new tool to tac...
by mkl on Sunday October 31, 2021 @02:38AM
(#29054943)
Put spaces around your *s or escape them like \*: 100*100*100m is one megaton, and 10*10*10 times that, a 1*1*1km cube, is indeed a gigaton. No one would suggest recapturing all emitted CO2 with this one method though.
That said, a quick google suggests tephra is about a ton per m^3; so a 100100100 metre cube of the stuff would be 1 kiloton.
a 111km cube would be a gigaton. So we need less than a thousand of those a year :-)