Ron, David L, James A. and Johannes Lehmann (but I do not have his address to put into this message)
I strongly recommend that the 2009 article Ron cites be looked at by many, and ESPECIALLY hope that the excellent graphics (partly shown by Ron) could be updated. The three scenarios are extremely clearly presented and instructive with
quantitative data for comparisons!!! In diagram C, the biochar amount is 1 Gt CO2e/yr. (and IMO it could be higher).
I ask the authors to tell us if there is any chance of this being updated.
A related big question and challenge is how do we accomplish the potential of intentional pyrolysis (not just leftover biochar after combustion).
Paul
[PSA>>] Ron Larson wrote:
1.Thanks for this reminder of the importance of utilizing pyrolysis gases.
2. I had forgotten that David has used the term “Pyrolysis-Biochar-Bioenergy Platform”
for years and found his (and 3 more well-known biochar authors) important 13-year-old (non-fee) paper;
3. with this important “platform” figure (that should expand with a click).
.
4. Two other (A and B) parts of the figure are needed to see his/theri prediction of 1.8 Gt C./ yr (about 6 Gt CO2 / yr). But now we can add some urban resources (ala Stockholm) and some intentional (non-residue) production (and maybe
ocean?
Given the XPRIZE (this month) emphasis on getting to 1 Gt CO2/yr, I hope we might hear from David (and everyone) what he/they believe all of biochar might get to as the left-most “7.1” (Gt C/yr) annual C additions (fossil and other) is
now about 10.
5. Warning: The XPRIZE is cutting only actual CO2 removals – This figure includes (lower left green) replacements – and XPRIZE should also.
Ron
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