Update: Everything and the Carbon Sink 2026 Carbon Credit RFP
Voting begins for the finalists
Last month, I announced that I was using the $735 in my Substack earnings for this year to purchase the most premium carbon removal credit that I could find. This month, I announce the Everything and the Carbon Sink credit grading rubric, and a poll for paid subscribers to vote for their favorite supplier that submitted an application to the RFP.
Rubric
To judge each credit, I will give equal weight to the following factors, on a scale of 1-10:
Delivery: probability that the credit will be delivered and verified within two years.
Bonus points: physical delivery of credit is possible.
Permanence x additionally: probability the removal wouldn’t have happened without the credit and that carbon stays removed from the atmosphere indefinitely.
Scale potential x Lifecycle Carbon Accounting rigor: probability that the solution scales to meaningful levels for the climate in the future, adjusted for the rigor of the LCA today. This factor attempts to balance near-term innovation (and less net-removal today) with higher confidence / more comprehensive system boundaries on carbon accounting.
AI assessment: What does Claude say, after reviewing resources for how to buy carbon removal credits well from Frontier, Carbon Direct/Microsoft, DOE (hard copy below), and CDR.FYI on how to buy high quality removal, compared to all publicly available information about these credit suppliers and their proposed solution pathways?
Everything and the Carbon Sink paid subscriber vote: below the paywall.
