Solutions · Carbon & biodiversity buyers
Buy blue carbon you can defend in an audit.
The voluntary carbon market has an integrity problem, and ocean credits are not immune. Canopy Ledger was built for sceptics: every credit traces to mapped canopy, in-water surveys and an openly published methodology — with the limits of kelp carbon stated as clearly as the benefits.
The situation
The problems we hear about first.
Integrity risk is now a board-level issue
A credit that fails a later audit is worse than no credit. Buyers need documentation that survives scrutiny from assurance providers, journalists and their own legal teams.
Permanence in the ocean is genuinely hard
Kelp carbon claims have been oversold. Durable pathways exist — but only some of the biomass reaches them, and a credible seller says exactly how much.
Co-benefits are usually marketing, not data
“Good for biodiversity” is easy to print and hard to prove. Buyers increasingly want measured species returns, not stock photos of fish.
Portfolios need variety without new vendor risk
Procurement wants exposure to blue carbon without onboarding a different unverifiable project for every tonne.
The program
How we work together.
Site-level traceability, end to end
Every credit links to a named reef: satellite and drone canopy records, dive surveys, and the biomass and export models applied — published on Canopy Ledger, open access.
Independent verification, annually
Third-party auditors reconcile our models against field plots each year before issuance. Their findings, including qualifications, are part of the public record.
Honest permanence accounting
We only credit carbon with a credible durability pathway — long-lived export to deep water on stewarded, 20-year sites with buffer pools. What fraction of biomass qualifies is stated per site, with the math attached.
Biodiversity as measured uplift
Biodiversity credits are issued against counted change — fish, invertebrates and canopy structure surveyed on a fixed schedule — not projected habitat value.
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What good looks like
The numbers we hold ourselves to.
0.93
F1 canopy-detection score on held-out winter imagery (illustrative)
Weekly
satellite revisit over every active site, published openly
20 yr
stewardship horizon with buffer pools behind every issued credit
Figures describe Tidewright’s fictional operating standards and illustrative program outcomes.
“Our assurance provider asked for the canopy time series and the audit qualifications. Both were already public. It was the least painful due-diligence cycle we have run on any nature credit.”
Ways in
Three ways to start.
Forward purchase agreements
Multi-year offtake from named sites with published verification schedules — price certainty for you, funding certainty for the reef.
Spot portfolio credits
Issued, verified blue-carbon and biodiversity credits available for near-term retirement, with full MRV documentation attached.
Methodology access program
Your assurance and science teams get direct access to our methodology group and open datasets before you commit to a purchase.
Questions
FAQ for carbon & biodiversity buyers
- Is kelp carbon actually permanent?
- Some pathways are durable and some are not — and we only credit the durable ones: biomass demonstrably exported to deep water, from stewarded sites with 20-year commitments and buffer pools. Our methodology pages show the credited fraction per site and the assumptions behind it. Be suspicious of anyone who claims more.
- Who verifies the credits?
- Independent third-party auditors, annually, reconciling our canopy and biomass models against physical field plots. Verification statements — including any qualifications — are published on Canopy Ledger alongside the credits.
- Can our own auditors review the underlying data?
- Yes. Site canopy time series, survey records and methodology documents are open access; raw survey data is available to buyers under the methodology access program. You should not have to trust us — the record is the product.
- What happens to our credits if a restored site fails?
- Buffer pools across the portfolio absorb site-level losses, and the 20-year stewardship obligation includes reseeding after extreme events. If a site underperforms durably, the replacement and retirement rules in each agreement apply — written down in advance, not improvised after.
See the record before you buy a single credit.
We will walk your team through a live site — canopy maps, survey data, audit statements — and outline forward and spot structures sized to your targets.
Tidewright is a fictional company created as a design and content demonstration. Enquiries go nowhere — but the demo is real.