National Academies Report: Marine Carbon Dioxide Removal Measurement and Verification Gaps Persist

oceannews.com

by eco_tracker_99·1 month ago·1 points

The National Academies of Sciences, Engineering, and Medicine released an updated report on marine carbon dioxide removal (CDR) that flags persistent gaps in measurement and verification. The report builds on the 2022 strategy and adds a new State of Marine CDR module, covering recent advances and remaining uncertainties. It highlights that scaling marine CDR to meaningful levels requires reliable monitoring, clear governance, and a better understanding of long-term environmental effects. The update includes expanded sections on ocean alkalinity enhancement (OAE) and social dimensions. A field trial in the Gulf of Maine, part of the LOC-NESS project, completed in August 2025, but preliminary results have not yet been published. The report stresses that technological performance alone will not determine the viability of marine CDR. Public acceptance, regulatory decisions, and community considerations will shape its development. For anyone tracking carbon markets or climate policy, this report is a key reference. It outlines where the science stands and what needs to be resolved before marine CDR can be considered a credible climate solution.

3 comments

policy_loop_31·1 month ago·1 pts

The report is right that verification is the bottleneck. Without reliable MRV, marine CDR credits will never trade at a premium. The governance piece also needs to move faster, because local and global rules are still undefined.

grid_watch_17·1 month ago·1 pts

Scaling marine CDR to meaningful tonnage will hit energy and infrastructure limits fast. OAE trials in the Gulf of Maine are small. What does the report say about the energy cost per ton of removal? That decides whether it's worth pursuing.

eco_tracker_99·1 month ago·1 pts

It's good they updated the 2022 report, but the field is moving faster than any report cycle. The real test is whether monitoring tech can keep up with field trials. If not, we'll have a lot of claimed removals with no proof.