Blue Carbon6 min read
The Seaweed Carbon Debate: Hype, Hope and the Hard Numbers
How much carbon does seaweed really lock away? A sober guide to the sequestration claims, the science behind them, and where the evidence actually lands.
Priya Raman ·
Climate & Blue Carbon
How coastal ecosystems store carbon, and how credible blue-carbon markets work — MRV, additionality, permanence and policy, without the hype.
149 articles
Blue Carbon7 min read
Sinking Seaweed for Carbon Removal: The Promise, the Physics and the Open Questions
Ocean biomass sinking proposes growing seaweed at the surface and sending it to the deep sea. An honest explainer of the physics, methods and the questions still open.
Priya Raman ·
Blue Carbon9 min read
Sediment Carbon vs Biomass Carbon: Where the Real Blue Carbon Lives
Most blue carbon sits underwater in soil, not in leaves. Why sediment carbon dominates mangrove and seagrass accounting — and what that means for kelp.
Priya Raman ·
Blue Carbon9 min read
The Life of a Blue Carbon Credit: From Feasibility to Issuance
Follow a blue carbon credit through its full project cycle — feasibility, design, validation, monitoring, verification, issuance and retirement.
Priya Raman ·
Blue Carbon11 min read
The Policy Gap: Why Kelp Carbon Isn't Counted (Yet)
Kelp forests fix carbon at extraordinary rates, yet sit outside IPCC inventories and most crediting standards. Here's why — and what would close the gap.
Priya Raman ·
Blue Carbon10 min read
Selling Tomorrow's Tide: Offtake Agreements in Blue Carbon
How developers use forward offtake agreements to turn restoration plans into bankable projects — structures, coverage discipline and the traps.
Priya Raman ·
Blue Carbon10 min read
Is Kelp Blue Carbon? The Honest Debate About Rocky Reefs
Kelp forests don't bury carbon in their own sediment the way mangroves do. The donor-versus-recipient debate, the export science, and what kelp can claim.
Priya Raman ·
Blue Carbon11 min read
Mangrove, Marsh, Seagrass, Kelp: An Honest Blue-Carbon Comparison
Mangroves, salt marshes, seagrasses and kelp all store coastal carbon — differently. An honest comparison of stocks, rates, permanence, MRV readiness and co-benefits.
Priya Raman ·
Blue Carbon10 min read
On the Books: Accounting and Tax Treatment of Blue-Carbon Credits
Where do blue-carbon credits sit on the balance sheet, how are they taxed, and what must be disclosed? A plain-language map for finance teams.
Priya Raman ·
Blue Carbon8 min read
Leakage in Kelp Carbon: When Restoration Shifts Pressure Elsewhere
What carbon leakage is, how activity-shifting and market leakage affect kelp and blue carbon projects, and how credible accounting deals with it.
Priya Raman ·
Blue Carbon8 min read
Net Zero and the Ocean: Reading Corporate Claims Honestly
How do you tell a real marine climate commitment from greenwash? A plain-language framework for reading net-zero ocean claims — and the questions that expose the gaps.
Dr. Lena Fischer ·
Blue Carbon9 min read
Carbon Claims on Seaweed Products: What's Defensible and What Isn't
Kelp snacks and seaweed straws carry big carbon claims. What a product-level footprint can honestly say, what it can't, and how to spot the difference.
Priya Raman ·
Blue Carbon7 min read
The Seaweed-Sinking Debate in 2026: Promise, Peril and the Case for Caution
Seaweed sinking is the most contested idea in ocean carbon removal. Where the science has settled, where it hasn't, and five tests before crediting a tonne.
Dr. Lena Fischer ·
Blue Carbon10 min read
Who Benefits? Designing Benefit-Sharing in Blue Carbon Projects
How blue carbon projects can share revenue, jobs and decision power fairly with coastal communities — models, safeguards and the questions to ask first.
Priya Raman ·
Blue Carbon11 min read
The Digital MRV Stack: Sensors, Satellites and eDNA for Blue Carbon
How satellites, drones, in-water loggers and eDNA sampling combine into a digital MRV stack that makes ocean carbon projects measurable, auditable and affordable.
Priya Raman ·
Blue Carbon8 min read
Nature Credits vs Carbon Credits: Two Ledgers for One Ocean
Carbon credits count tonnes; nature credits count living complexity. How the two markets differ, overlap and collide — and how honest projects keep the ledgers straight.
Dr. Mara Ellison ·
Blue Carbon6 min read
Blended Finance for Blue Carbon: Grants, Guarantees and the Cost of Waiting
Blended finance uses grants, concessional debt and guarantees to de-risk blue carbon projects. How the layers fit together, and what each year of delay costs.
Priya Raman ·
Blue Carbon8 min read
What Is a Carbon Registry? The Plumbing Behind Every Credit
Every carbon credit lives or dies by its registry — the database that issues, tracks and retires it. Here's what registries do and why serial numbers matter.
Priya Raman ·
Blue Carbon8 min read
Double Counting, Explained: Who Owns a Tonne of Blue Carbon?
Double counting decides whether a carbon credit means anything. Here's how the same tonne gets claimed twice — and how markets try to stop it.
Priya Raman ·
Blue Carbon6 min read
Insetting vs Offsetting: Where Coast-Dependent Businesses Should Invest
Insetting and offsetting both have a place in a coastal company's climate budget. A practical framework for deciding where each investment dollar works hardest.
Priya Raman ·
Blue Carbon11 min read
Ocean Carbon Dioxide Removal: The Emerging Landscape Beyond Blue Carbon
Beyond mangroves and kelp there is a fast-growing field of ocean carbon dioxide removal. Here is a clear map of the methods, their evidence, and their risks.
Priya Raman ·
Blue Carbon9 min read
Buying Ocean Carbon Removal Credits: A Buyer's Field Guide
Ocean CDR credits span sinking biomass to alkalinity enhancement. A due-diligence framework on durability, MRV maturity, delivery risk and how to structure a purchase.
Priya Raman ·
Blue Carbon10 min read
Who Owns Seabed Carbon? Tenure and Rights for Blue-Carbon Projects
Who legally controls carbon stored in seabed sediments and coastal waters — tenure regimes, marine property rights and what they mean for carbon projects.
Priya Raman ·
Blue Carbon9 min read
Corresponding Adjustments: The Accounting Move That Stops Double Counting
What corresponding adjustments under Article 6 are, how they prevent double counting, when they apply to blue carbon, and how buyers check them.
Priya Raman ·