Funding pathways
Coastal restoration has more funding paths than most teams realise.
Blue carbon credits. Corporate biodiversity disclosure budgets. Emerging biodiversity credit markets. Debt-for-nature swaps. Payments for ecosystem services. Traditional conservation grants. Every path needs rigorous monitoring evidence. MariMap is built to produce it.
The map
Seven routes, one evidence backbone.
Each pathway below has a different maturity, a different audience, and a different evidence bar. The table groups them honestly. "Operational today" means the pathway is actively issuing credits, approving disclosures, or disbursing funds in 2026. "Early" means the market exists but volumes are small. "Required" means regulation mandates action on a fixed timeline.
Blue carbon credits
Operational todayThe only pathway issuing marine restoration credits at commercial scale today. Around 5 million credits cumulatively, roughly 99 percent from mangroves. Prices $15 to $35 per tCO₂e, rising with quality premiums.
Corporate disclosure: TNFD and CSRD ESRS E4
Required from 2025 to 2027Not speculative. CSRD is in force: tens of thousands of EU-connected companies report ESRS E4 on a staggered timeline, with large firms reporting FY2025 in 2026 and listed SMEs from FY2026. TNFD has over 500 committed organisations and released marine sector guidance for fishing, shipping, and cruise lines.
Biodiversity credits
EarlyMarket is forming. Around 20 transacted deals across 2024 to 2025, under $1 billion in total volume. IAPB framework launched at COP16 Cali in October 2024. BCA high-level principles reached V7 in May 2025. High-integrity buyers are waiting on methodology maturity.
Debt-for-nature swaps
Rare but growingReal money, small number of deals. Over $1 billion cumulative across Seychelles 2015 ($22M), Belize 2021 (up to $553M), Barbados 2022 ($150M), Gabon 2023 ($500M), and Ecuador Galapagos 2023 ($1.6B face value, $644M buyback).
Payments for ecosystem services and results-based finance
ModerateReal funding available. Blue economy and coastal resilience windows at GCF and GEF are active and growing. Coastal communities can generate stable income through structured payments for no-take zone management, biodiversity conservation, and climate services.
Traditional conservation grants
BaselineThe baseline funding pathway. Foundation grants, government biodiversity programmes, and international NGO funding still cover most marine conservation in 2026. Smaller per-award than credit markets but broader reach.
Blue carbon credits
Blue carbon credits compensate projects for sequestering or protecting CO₂ in coastal ecosystems. Verra VM0033 covers mangroves, tidal marsh, and seagrass and accounts for roughly 99 percent of blue carbon issuance. Gold Standard released a removals-only mangrove methodology in August 2024. Plan Vivo PV Climate has certified three mangrove projects with several more in development.
Pre-intervention baselines for above-ground biomass (DBH and tree height), below-ground biomass, and soil organic carbon. Repeat surveys on a 3 to 5 year cadence. A validated Project Design Document, third-party VVB verification, and registry listing fees.
MariField captures DBH, plot-based biomass measurements, and GPS-tagged evidence offline. MariMap builds the time series, runs the QA/QC, and exports registry-aligned summaries. Metrics Reference tags every relevant field to VCS VM0033 so your evidence maps straight to the methodology data requirements.
Corporate disclosure: TNFD and CSRD ESRS E4
The Corporate Sustainability Reporting Directive forces EU-connected companies to report on sustainability, with ESRS E4 covering biodiversity and ecosystems. TNFD's LEAP workflow (Locate, Evaluate, Assess, Prepare) is the disclosure method most firms adopt. EFRAG published a TNFD-to-ESRS E4 correspondence table so one evidence base can feed both frameworks.
Spatial habitat condition data at each operating or financed site, species presence against IUCN-listed taxa, and ecosystem service dependencies. Methodology transparency and a dated evidence trail auditors can follow. The EU Nature Restoration Regulation (in force since August 2024) sets a binding target to restore 20 percent of EU land and sea by 2030, which raises the bar for marine-linked disclosures.
Metrics Reference filters every metric by TNFD LEAP, CSRD ESRS E4, EU Taxonomy, and VCS VM0033 disclosure frameworks. Site-level habitat condition scoring, benthic cover trend lines, and species lists export into disclosure-ready summaries. Report builder wires MariMap data into the exact fields ESRS E4 and TNFD require.
Biodiversity credits
Biodiversity credits reward measurable outcomes: ecosystem condition uplift, species recovery, or habitat extent gains. Several methodologies compete: Wallacea Trust's 1-percent uplift on a basket of 5 or more metrics, CreditNature's Ecosystem Condition Index (0 to 100 scale), Plan Vivo PV Nature for biodiversity certificates, and BCA-aligned frameworks published by the Biodiversity Credit Alliance.
A standardised baseline across a basket of metrics (cover, density, biomass, species diversity), repeat surveys over multi-year horizons, spatially explicit evidence, and third-party validation.
The MariMap protocol library maps explicitly to Wallacea Trust, Plan Vivo PV Nature, and ECI metric requirements. Darwin Core Archive export keeps your evidence portable across methodologies as the market consolidates. Time series plus statistical rigour (Mann-Kendall trend, Sen's slope, 95 percent CI) produces defensible uplift claims. MariMap generates the field evidence layer. It does not issue, verify, or broker biodiversity credits.
Debt-for-nature swaps
Debt-for-nature swaps restructure sovereign debt in exchange for long-term conservation commitments, often financed through blue bonds or credit guarantees. Deals are brokered by The Nature Conservancy, Credit Suisse, UBS, and IDB. Monitoring obligations vary but all require multi-decade evidence of marine protected area performance and ecosystem condition.
Continuous monitoring aligned with bond covenants. Marine protected area effectiveness metrics, habitat condition trends, species population indicators, and compliance reporting on a schedule that matches coupon payments or audit cycles.
Long-horizon time series with versioned datasets and a complete audit trail. Site-level MPA monitoring, cross-site aggregation, and a localised field UX in 19 languages for teams spread across jurisdictions. Exports satisfy conservation trust reporting requirements without retooling mid-contract.
Payments for ecosystem services and results-based finance
Payments for ecosystem services (PES) and results-based finance (RBF) tie funding release to measurable outcomes rather than activities. The Green Climate Fund, Global Environment Facility, and bilateral donors increasingly structure coastal programmes this way. Mid-point evaluations can unlock tranches. End-of-project evaluations close out or extend the grant.
A logical framework with clear outputs, outcomes, and impact metrics. Baseline plus periodic monitoring against each indicator. Independent evaluation-ready evidence packages. Spatially explicit data so donors can verify work happened where promised.
Project and site hierarchies match GCF logframe structures. Baseline and repeat surveys with QA/QC produce evaluation-ready summaries. Report builder generates funder-formatted annexes. Darwin Core Archive export makes the dataset interoperable for donor auditors.
Traditional conservation grants
Traditional grants come from private foundations (Walton Family Foundation, Oak Foundation, MacArthur, Packard, Bezos Earth Fund), government biodiversity programmes, and international NGO pass-throughs. Awards range from $10,000 community grants to $5 million multi-year research programmes. Evidence standards are lower than credit markets but rising year on year.
Narrative progress reports, financial statements, and monitoring summaries against the grant's logframe. Photos, GPS evidence, partner confirmations, and simple quantitative indicators. Responsive reporting when funders ask follow-up questions.
Standard monitoring outputs export into funder-ready PDF and CSV reports. Photo-and-GPS evidence is always attached to the underlying observation. Team and project management lets you delegate report production to field coordinators. Smaller teams get real value from the free tier.
For certifiers and framework owners
Build on top of MariMap data
Running a credit scheme, certification framework, or public reporting standard? MariMap generates standardised, georeferenced, time-stamped field evidence across 19 survey protocols. Talk to us about API access, data export formats, and co-development of methodology-specific monitoring requirements.
None of these pathways are shortcuts. Credits and disclosures require rigorous, repeatable evidence that stands up to independent verification. MariMap reduces the cost of producing that evidence. It does not create credits, verify outcomes, or broker transactions.
What MariMap is
- Your field-evidence platform. Standardised protocols, audit trail, versioned datasets, and exports in formats funders and registries already accept.
- Neutral infrastructure any methodology can plug into: VCS VM0033, Plan Vivo PV Climate and PV Nature, Gold Standard, Wallacea Trust, BCA-aligned, CreditNature ECI.
- EU-hosted and GDPR-compliant. Reef Support B.V., Amsterdam. Self-hosted infrastructure at Hetzner Helsinki. Your data stays yours.
What MariMap is not
- Not a Validation and Verification Body. We do not verify credits.
- Not a registry. We do not issue credits.
- Not a buyer marketplace. We do not broker credits. We are the evidence layer your project needs before a VVB, a registry, or a buyer will look at you.
From pathway to platform
Every pathway mapped to the MariMap features that serve it.
| Pathway | MariMap features that matter most |
|---|---|
| Blue carbon credits | MariField offline surveys, Tree Growth DBH protocol, biomass plots, soil carbon sampling, Metrics Reference (VCS VM0033 filter), Darwin Core Archive export. Methodology-aligned field capture plus registry-ready exports. |
| Corporate disclosure: TNFD and CSRD ESRS E4 | Metrics Reference (TNFD LEAP, CSRD ESRS E4, EU Taxonomy filters), site-level habitat condition scoring, time-series analytics, report builder. Location-specific evidence aligned to regulator-defined disclosure fields. |
| Biodiversity credits | Standardised protocol library (benthic, fish, seagrass, mangrove), baseline plus repeat surveys, Darwin Core Archive export, statistical trend analysis. Methodology-agnostic evidence that stays portable as the market consolidates. |
| Debt-for-nature swaps | Long-horizon time series, versioned datasets, MPA monitoring, multi-site aggregation, 19-language field UX. Decade-scale monitoring for bond-covenant accountability. |
| Payments for ecosystem services and results-based finance | Project and site hierarchies, logframe-aligned reporting, Darwin Core Archive export, funder-ready PDF and CSV output. Evaluation-ready evidence packages for GCF, GEF, and bilateral donors. |
| Traditional conservation grants | Standard reports, photo and GPS evidence, team management, free tier for small projects. Funder-ready outputs without enterprise platform overhead. |
See every metric and its disclosure framework →
Survey Protocols · Analytics & Reporting · Restoration Management
Go deeper
Methodology guides that pair with each pathway.
Blue carbon field MRV: what data do you actually need?
Field protocols, biomass measurement, and soil carbon sampling for VCS VM0033, Plan Vivo PV Climate, and Gold Standard mangroves.
Biodiversity credit readiness: protocols and evidence
How Wallacea Trust, Plan Vivo PV Nature, BCA-aligned, and CreditNature ECI methodologies frame what you collect and how often.
TNFD and CSRD reporting for marine and coastal portfolios
The LEAP workflow, ESRS E4 data points, and the EFRAG correspondence table that lets one evidence base feed both.
FPIC and data sovereignty
Free, Prior, and Informed Consent workflows and data governance patterns for community-led monitoring programmes.
Funding pathways: frequently asked questions
- Is MariMap a Validation and Verification Body?
- No. MariMap does not validate or verify credits. Independent VVBs do that under Verra, Gold Standard, Plan Vivo, or their biodiversity equivalents. MariMap is the field-evidence layer your project needs before a VVB engagement.
- Does MariMap issue credits?
- No. Registries issue credits: Verra, Gold Standard, Plan Vivo, and their biodiversity counterparts. MariMap produces the monitoring evidence that feeds registry submissions. We also do not broker or sell credits.
- Which methodologies does MariMap align with today?
- VCS VM0033, Plan Vivo PV Climate, Plan Vivo PV Nature, Gold Standard Sustainable Management of Mangroves, Wallacea Trust biodiversity methodology, BCA-aligned frameworks, and CreditNature ECI. The Metrics Reference page shows per-metric tagging for TNFD LEAP, CSRD ESRS E4, EU Taxonomy, and VCS VM0033.
- What if my project fits multiple pathways?
- Most do. A mangrove restoration project might produce blue carbon credits, feed a corporate disclosure line, and contribute to a debt-for-nature monitoring obligation at once. MariMap keeps the evidence base single-source so you do not duplicate field work across pathways.
- How do we start?
- Create a free account, configure your first project and monitoring sites, run a baseline survey. If you need dedicated onboarding, protocol configuration, and custom reporting, MariMap Professional covers that as an annual deployment contract scoped to your project. We discuss goals, site count, reporting cadence, and data requirements during discovery, and the pricing follows from there.
Pick your pathway. Start the evidence base.
Whichever funding route fits your project, the work that opens it is the same: a rigorous, versioned evidence base that travels between field teams, auditors, and registries. MariMap is built for that job.