Actual title is "Ocean Sequestration".<p>The piece <i>is</i> about hiding CO2 as liquid on the deep ocean floor.<p>Personally I'm more in favor of removing CO2 the way that it happens naturally: by erosion and weathering.<p>CO2 gets chemically bound into some kinds of rocks. Enhanced weathering involves crushing olivine or similar rocks, and exposing the powder to air for a few weeks in a hot place, and then dumping it in the deep ocean.<p>It's what happens naturally. It'd just be quicker with mechanical assistance.