[iamnotwhoiam]

I meant the idea of spreading crushed olivine on particularly wavy beaches. The CO2 comes out of the ocean water. Still moving the olivine artificially, but relying on the ocean's natural mechanical energy and greater concentration of CO2 than the atmosphere.

[elric]

Aha, thanks for clarifying that! Been reading up about it and it seems like a pretty solid idea. Doesn't look like there are any major projects underway though.