New Category “Greensand”

I have been reading a bit about using olivine weathering to permanently take out CO2 from the atmosphere. I think this kind of idea has enough merit to discuss it in some more detail.

Therefore I have opened yet another new category on this blog. I didn’t call it “olivine weathering”, since “greensand” sounds much more interesting, and most people wouldn’t know what “olivine” is anyway. I have mentioned olivine briefly in two posts in 2011 on this blog, but I think it should get some more attention.

I have been influenced in this choice also by the fact that the Dutch company “Greensand” already offers a product based on the concept.

This idea has also reached the finals  in a “Virgin Earth Challenge” contest for concepts of CO2 removal at massive scale, as one of eleven winners out of over three thousand proposals.

Published by kflenz

Professor at Aoyama Gakuin University, Tokyo. Author of Lenz Blog (since 2003,

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