Enhanced weathering is a simple, natural way to achieve negative CO2 emissions.
Keynote by Pol Knops and Eddy Wijnker, International Conference on Negative CO2 emissions, Stockholm, Sweden, May 22, 2018
By applying huge amounts of alkaline materials (like Olivine) on beaches, in the sea or on agricultural soil, enhanced weathering is envisioned. Done with the sole aim of the removal of CO2. Disadvantages of this approach are the costs of geo-engineering discussions, negative side effects and the CO2 impact from mining, milling, and transportation. More