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01 Carbon Removal Pathway
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Blue Carbon &
Marine Ecosystems

Blue carbon ecosystems sequester carbon at rates up to 10× faster per hectare than terrestrial forests, storing it in sediments for thousands of years. From mangrove restoration in West Africa to seagrass protection in the Indo-Pacific, Teravent supports the full breadth of coastal and marine carbon removal.

Marine ⏳ Centuries–Millennia 📋 TM-005 ● Active
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10×
Sequestration rate vs forests
1,000yr+
Sediment storage timescale
167M ha
Global mangrove resource
High
Co-benefit potential
TM-005
Teravent Methodology ID
View MRV protocols →

How this pathway works

Blue carbon ecosystems - mangroves, seagrasses, saltmarshes and tidal wetlands - are among the most carbon-dense ecosystems on Earth. They sequester carbon in both their biomass and, critically, in anoxic sediments below the waterline where decomposition is extremely slow. Carbon stored in these sediments can remain locked away for millennia.

Teravent supports both conservation-based projects (preventing loss of existing ecosystems) and restoration-based projects (re-establishing ecosystems on degraded coastal land). Methodologies align with the IPCC Wetlands Supplement and Teravent MRP-04 for water chemistry monitoring in marine environments.

The Global South - particularly the coastlines of Sub-Saharan Africa, South and Southeast Asia, and Latin America - contains the majority of the world's remaining intact mangrove and seagrass resources, and is the primary focus of Teravent's blue carbon programme.

Project types accepted

The following variants of the Blue Carbon pathway are currently eligible for registration in the Teravent Registry.

Mangrove conservation and restoration (tropical and subtropical)
Seagrass meadow protection and re-planting
Saltmarsh and tidal wetland restoration
Coastal blue carbon avoidance (preventing land conversion)
River and estuary carbon flux accounting
Macro-algae cultivation and sinking

Measurement, reporting
& verification

Teravent's Science Advisory Board assesses each pathway against four MRV dimensions. These scores reflect the current state of measurement science and are updated as methodology evolves.

Remote Sensing AccuracyHigh
Ground-Truth FeasibilityMedium
Permanence ConfidenceHigh
Additionality ClarityHigh
🔬 Science & Measurement Note

Blue carbon MRV requires integration of remote sensing (Sentinel-2, LiDAR), ground-truth plot sampling, and sediment core analysis for soil organic carbon. Teravent MRP-04 governs water chemistry monitoring for coastal and marine projects.

Key registration criteria

Projects must meet all of the following minimum requirements to be considered for registration under the Blue Carbon pathway. Additional requirements may apply depending on project size, geography, and specific methodology version.

Project is located in tropical or subtropical coastal zone
Baseline deforestation or degradation threat is documented
Free, Prior and Informed Consent (FPIC) obtained from coastal communities
Minimum 20-year project term with permanence commitment
Independent VVB accredited to ISO 14065 and approved by Teravent

Sustainable Development
Goal alignment

All Teravent registered Blue Carbon projects must complete an SDG impact assessment at registration and at each verification period. 7 SDGs are tracked for this pathway.

SDG 13 Climate ActionSDG 14 Life Below WaterSDG 15 Life on LandSDG 1 No PovertySDG 8 Decent WorkSDG 2 Zero HungerSDG 6 Clean Water

Focus region: West Africa, SE Asia, Latin America - where co-benefits for communities and ecosystems are most significant and credit demand most transformational.

🌊 Blue Carbon

Ready to register your
removal project?

Join the community of project developers bringing high-integrity carbon removal to the Teravent Registry - from the Global South and beyond.