High-Energy Coastal Olivine Weathering Model

Underwrite coastal dredging and beach nourishment platforms spreading high-purity magnesium silicate olivine sand into high-energy ocean surf zones (dissolving into seawater to permanently sequester 1.25 tonnes of atmospheric CO2 as bicarbonate ions per tonne of rock). Model certified marine CDR carbon credits ($140/t CO2), and 20-yr IRR.