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.
Lenz Blog 