[tuatoru]

Accelerated weathering of olivine mineral rocks is the easy, safe way to cool the planet. Mine 'em, crush 'em fine, spread the dust in the ocean.

The numbers say that even if the whole operation was powered by coal, it'd sequester 20 times as much CO2 as it generated. Use natural gas or other electricity generation for some of it, and the ratio improves dramatically.

Costs less than a $trillion a year which is one percent of global GDP.

Edit: it's the easy, safe, cheap thing to do; and we won't do it.

1. https://worksinprogress.co/issue/olivine-weathering