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Marine Conservation Credits Programme

A standards and registry platform for marine conservation outcomes.

MCC develops methodologies, registers projects, supports independent validation and verification, and issues serialised conservation credits backed by continuous satellite monitoring of marine ecosystems.

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Paris Agreement Article 6
ICVCM CCP-Aligned
Kunming-Montreal GBF
ISO 14064 Conformant
IPCC Tier 2/3

Project Registry

Featured Projects

Marine conservation projects delivering measurable impact in ocean restoration, coastal carbon sequestration, and biodiversity protection.

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Register your project on the MCC platform — mangroves, kelp forests, coral reefs, seagrass meadows, and more.

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Reference frameworks

Anchored in established international guidance

MCC methodologies and governance procedures reference the international frameworks listed below. References indicate technical alignment — they are not endorsements, accreditations, or eligibility determinations by the issuing bodies.

Paris Agreement Article 6

Cooperative approaches

MCC methodologies are designed to support Article 6 cooperative approaches and corresponding adjustment workflows for sovereign-to-sovereign transfers. Use under Article 6.2 or 6.4 remains subject to host-country authorisation and Supervisory Body decisions.

ICVCM Core Carbon Principles

Methodology design reference

Methodologies are designed against the ten ICVCM Core Carbon Principles — additionality, permanence, robust quantification, no double counting, sustainable development safeguards. The CCP label is awarded by ICVCM following independent assessment and is not yet held by MCC.

Kunming-Montreal GBF

30×30 biodiversity targets

MCC-MCU conservation units quantify outcomes relevant to Target 3 (30% marine protection by 2030), Target 2 (ecosystem restoration), and Target 19 (biodiversity finance). Buyer claims must remain contribution-first and align with TNFD and CSRD biodiversity reporting practice.

IPCC Guidelines

2006 + 2013 Wetlands Supplement

Quantification of carbon outcomes uses IPCC Tier 2/3 approaches for coastal and marine ecosystems, including the 2013 Wetlands Supplement and 2019 Refinement. Emission factors, activity data, and uncertainty are documented per IPCC good-practice guidance.

ISO 14064

Parts 1, 2 & 3

GHG project quantification, monitoring, and reporting follow ISO 14064. Project validation and verification is performed by accredited third-party VVBs operating under ISO 14065.

UN Ocean Decade

2021–2030

Programme outcomes are framed against the UN Decade of Ocean Science for Sustainable Development priorities for clean, healthy, productive and sustainably harvested oceans.

EU CSRD & TNFD

Corporate disclosure

Credit data and retirement records are designed to support buyers reporting nature-related disclosures under TNFD and the EU Corporate Sustainability Reporting Directive.

Programme scope

The MCC programme at a glance

Figures reflect the methodology library and project pipeline at the current programme stage. The programme is in pre-launch; no MCC credits have been issued under final approved methodologies.

5
Methodology families
F01–F05 covering coastal carbon, kelp, seagrass, weathering and saltmarsh
10
Standards documents
MCC-001 through MCC-850 — design, monitoring, AI, governance
3
Credit categories
MCC-CC carbon · MCC-HYB hybrid · MCC-MCU conservation units
17
Pipeline projects
Across 15 countries, in design and validation stages

Why MCC

The Missing Piece in Ocean Finance

Land-based ecosystem credit markets have shown that scientific rigour, independent verification and transparent registries can mobilise finance for nature. The ocean — the largest and most underfinanced ecosystem on Earth — does not yet have an equivalent infrastructure designed for it. MCC develops the methodologies, registry and governance needed for serious conservation finance to flow into marine and coastal ecosystems, with a contribution-first claim framework that protects integrity from day one.

Blue Carbon Credits
MCC-CC

Blue Carbon Credits

Mangrove forests, seagrass meadows, kelp forests, and salt marshes that sequester atmospheric carbon in marine soils and biomass.

Hybrid Credits
MCC-HYB

Hybrid Credits

Projects that combine measurable carbon sequestration with biodiversity co-benefits — capturing both climate and ecosystem restoration value.

Conservation Units
MCC-MCU

Conservation Units

Biodiversity protection, species recovery, and habitat restoration credits that value conservation outcomes independently of carbon.

Programme design

Built for the ocean from first principles

MCC methodologies, monitoring requirements and registry architecture are designed specifically for marine ecosystems — with continuous satellite observation, mandatory independent verification, and a contribution-first claims framework that distinguishes credit retirement from offsetting.

Ocean-native methodologies

MARINE-FIRST

Methodologies are designed for marine ecosystems from the start — accounting for tidal cycles, salinity gradients, water-column dynamics, and the soil-carbon pathways of mangroves, seagrass and kelp. Land-based protocols are referenced where directly applicable, not retrofitted.

Continuous satellite monitoring

MONITORING

Project boundaries are observed monthly via Sentinel-2 (Copernicus Data Space Ecosystem). NDVI, NDWI and habitat-cover indices are persisted on the registry; anomalies trigger reversal review. Field-based MRV — sediment coring, biomass sampling, dive surveys — delivers the scientific rigour required by ISO 14064.

Conservation units beyond carbon

BIODIVERSITY

MCC-MCU units quantify biodiversity, habitat restoration and species-recovery outcomes independently of carbon. They are designed for buyers reporting under TNFD and the GBF, where carbon-equivalence is not the relevant unit of account.

AI-assisted review with human verification

TECHNOLOGY

AI is used to pre-screen Project Design Documents for completeness and internal consistency, and to flag remote-sensing anomalies for expert review. AI does not replace VVB audits or governance approval — every issuance requires an accredited third-party verification opinion.

Serialised, auditable registry

TRANSPARENCY

Every issued credit carries a unique serial number, full project lineage and a permanent retirement record. Public verification of any serial is available at /verify/{serial}. Corresponding adjustment is supported for Article 6 transfers where authorised by the host country.

Contribution-first claim framework

INTEGRITY

MCC retirement language is contribution-first by design. Buyers cannot make offsetting, neutrality or net-zero claims against MCC retirements; permitted language is published in MCC-800 and enforced at the point of retirement.

Credit lifecycle

From project design to public verification

Each credit moves through nine stages across three governance bands — programme-managed steps, independent third-party verification, and the public registry. Independent steps are highlighted; nothing is self-certified.

MCC programmeIndependent (third-party)Public registry01Project designMethodology + PDD02ValidationAccredited VVB03RegistrationMCC Registry04MonitoringSentinel-2 + field MRV05VerificationAccredited VVB06IssuanceBuffer pool · serial range07MarketplaceCohort listings08RetirementContribution claim09Public verification/verify/{serial}Every issued credit carries a unique serial number publicly verifiable at /verify/{serial}
01
Project designMCC programme
Methodology + PDD
02
ValidationIndependent (third-party)
Accredited VVB
03
RegistrationMCC programme
MCC Registry
04
MonitoringMCC programme
Sentinel-2 + field MRV
05
VerificationIndependent (third-party)
Accredited VVB
06
IssuanceMCC programme
Buffer pool · serial range
07
MarketplacePublic registry
Cohort listings
08
RetirementPublic registry
Contribution claim
09
Public verificationPublic registry
/verify/{serial}

Every issued credit carries a unique serial number publicly verifiable at /verify/{serial}

Methodological Rigour

Standards Framework

Comprehensive, peer-reviewed standards covering every aspect of marine conservation credit design, quantification, and verification.

View All Standards

Trust & Transparency

Integrity by Design

Every safeguard is built into the protocol — not bolted on after.

01

Independent verification

Project validation and credit issuance require an opinion from an accredited third-party VVB operating under ISO 14065. Self-certification is not permitted under any methodology.

02

Public registry

Project Design Documents, validation and verification reports, methodology applications and credit issuance records are publicly accessible by default.

03

Permanence and buffer pool

Family-specific buffer percentages are withheld at issuance to absorb reversal risk. Buffer release follows MCC-700 monitoring requirements and Sentinel-2 anomaly review.

04

Serialisation and lineage

Each credit carries a unique serial number with a permanent issuance and retirement record. Double counting is prevented at the registry level; corresponding adjustment is supported for Article 6 transfers.

05

Community and FPIC safeguards

Free, prior and informed consent, indigenous rights and equitable benefit-sharing are mandatory project requirements, screened during validation per the GBF social safeguards.

06

Methodology governance

Methodologies are developed by marine scientists, opened for stakeholder consultation and reviewed by an independent expert panel before approval. Revisions follow a published change-control process.

Updates

Latest News

Apr 2026

Pre-launch milestone — registry, marketplace and continuous monitoring engine operational

The MCC platform is now operational in demonstration mode. Demonstration projects across F01–F05 families are issuing serialised credits under draft methodologies; the public verification endpoint is live.

Mar 2026

Mekong Delta Mangrove Restoration enters first issuance

1,000 conservation credits issued under vintage 2025, with 100 held in the buffer pool. The first 100 retired credits have a public retirement certificate.

Feb 2026

Sentinel-2 continuous monitoring rolled out across all pilot projects

Continuous NDVI baselines via the Copernicus Data Space Ecosystem. Monthly snapshots are persisted automatically.

Jan 2026

MCC-800 contribution-first claims framework published

Codifies the programme's contribution-first claims framework. Permitted retirement language is enforced at the point of retirement.

Dec 2025

17 projects across 15 countries in active pipeline

Pipeline spans coastal carbon, kelp, seagrass, saltmarsh and weathering methodologies. All five MCC families now have at least one active project.

Oct 2025

MCC-850 AI & Remote Sensing standard published

Standard governs the use of AI and satellite remote sensing in monitoring and review. Final verification opinions remain a third-party VVB responsibility.

All programme updates →

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