Re: Potential for large-scale CO2 removal via enhanced rock weathering with croplands: Nature #rockdust #weathering #carbonmineralization
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Valentine et al:
I just sent this following note off on this “Beerling” article to a different (AMEG) list (leaving off the intro):
The Guardian article had brief mention of a commentary by Johannes Lehmann (my most favorite biochar author) and Angela Possinger. I found that in the same July 8 issue - at https://www.nature.com/articles/d41586-020-01965-7
Obviously Nature asked for this preview article - because Professor Lehmann was an official reviewer for the main article. These two final sentences are important from a biochar perspective (biochar being hardly mentioned except as having a possible impact):
"Scientists might need to recognize that climate-change mitigation is not a sufficient incentive on its own, and that benefits to crop growth will need to be prioritized, as will financial incentives. Such an approach of financially supporting soil health and crop production could emerge as our best near-term solution to the problem of removing CO2 from the atmosphere."
Dr. Possinger'ss recent thesis, with Prof. Lehmann as faculty advisor, is on this same topic (apparently not mainly on biochar). We should look forward to hearing more from her.
This is an important set of papers from the CDR perspective. I will forward this added cite separately to the CDR list.
I have not commented on the Beetling paper here - but have read it fairly carefully. There is sufficient mention of biochar - but not of the need for the soil improvement importance provided by this earlier invited paper in the same issue of Nature.
I see no direct connection to AMEG - but CDR still seems to be key for the Arctic.
Again - thanks for the alert.
ps - Anything positive to report on your Cameroons biochar work?