3 ms·

Nah, the other problem with DAC is the plain material costs and time and scale of building them to deploy. Did you think all this steel and composites for high

• kragen 3y ago
  there are dac approaches that do not require steel, composites, high pressures, or turbopumps; historically they have not been competitive because they use more energy carbon sequestration is cheaper in some geologies but feasible everywhere
  • AstralStorm 3y ago
    Feasible by doing what exactly? Digging or drilling? Making concrete casts? Using lime we already are kind of low on worldwide?
    • kragen 3y ago
      most places have olivines that can be serpentinized, though some have more than others. other approaches include salt domes lime doesn't help with sequestration; we certainly aren't low on it, but you make it by driving carbon dioxide out of calcite. it's a candidate sorbent in the dac process but not a candidate sequestration approach