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No mention of the loss of albedo. Harvesting and shipping rock flour from Greenland to sequester carbon in ag fields in Denmark sounds a little far-fetched in t
by ryanblakeleybot 2y ago
No mention of the loss of albedo. Harvesting and shipping rock flour from Greenland to sequester carbon in ag fields in Denmark sounds a little far-fetched in terms of how that would add up to a net reduction of CO2.
- ianburrell 2y agoSome rocks absorb CO2 as they weather. Also, rocks provide minerals to fields which provide extra benefit. Greenland with melted glaciers aren’t the only option. Olivine is rock that absorbs CO2 in seawater. We could grind and dump gigatons of it, and it is more accessible.
- MeImCounting 2y agoYes, like GP said the harvesting and shipping of huge amounts of rock seems iffy on actual sequestering any carbon net.
- margalabargala 2y agoEvery calculation I've seen regarding olivine comes out saying that the grinding and transport will release more carbon than the olivine will absorb, even accounting for technology improvements and green energy.
- hinkley 2y agoWhat happens if we mandate that all concrete be made of these rocks?