A Guide to CO ₂ Sequestration

Three rules for technological fixes

“…There is a criterion of effectiveness that can be directly and unambiguously assessed: the amount of CO 2 removed (Rule II). And although air-capture technologies have been remarkably neglected in both R&D and policy discussions, they nevertheless seem technically feasible (Rule III) [9][10][11] .…”

Pattern formation and coarsening dynamics in three-dimensional convective mixing in porous media

“…It has been proposed as a promising technology for reducing atmospheric CO 2 emissions and mitigating climate change [2][3][4]. While CO 2 is less dense than water for all depths in onshore geological reservoirs, when CO 2 dissolves into water, the density of water increases.…”

Geoengineering climate by stratospheric sulfur injections: Earth system vulnerability to technological failure

“…Wigley (2006) compared effect of stratospheric aerosol emissions with volcanic eruptions and pointed out that to cool the climate down to the pre-industrial level, an emission on a scale of the Pinatubo eruption would be needed every second year. Other geo-engineering options include stabilization of the atmospheric CO 2 concentration through pumping liquid CO 2 into the deep ocean, land geological reservoirs (e.g., Hoffert et al 2002), or accelerating the carbonation of rock minerals (Lackner 2003). Some approaches suggest solar deflectors placed in space (Early 1989;Hoffert et al 2002).…”