“In a drastic attempt to protect their beachfront homes, residents in Salisbury, Massachusetts, invested $500,000 in a sand dune to defend against encroaching tides. After being completed last week, the barrier made from 14,000 tons of sand lasted just 72 hours before it was completely washed away”
Hear me out, if they had used olivine, they could sell carbon removal credits. At $100/tonne of CO₂, that’s $1,000,000 for 14,000 tonnes of olivine!
@davidho please provide a reference that suggests 1 ton CO2 removal per 14 tons of olivine. That is substantially less than 1.25 ton CO2/ton olivine potential reported by Hangx and Spiers in 2009.
@davidho@jim_smoot ah, thanks for clarifying. What is the source of removal inefficiency in coastal olivine sand deployment? Precipitation, addionality, or a combination of both? Is there a report that describes field trials?
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