How coastal ecosystems store carbon, and how credible blue-carbon markets work — MRV, additionality, permanence and policy, without the hype.
149 articles
The IPCC's 2013 Wetlands Supplement let countries count mangroves, marshes and seagrasses in carbon ledgers. How it works — and what it leaves out.
Priya Raman ·
Avoided-loss credits pay to stop an ecosystem from dying. For kelp forests the idea holds real promise — and some serious counterfactual traps.
Priya Raman ·
A carbon credit is only real if the baseline against which it's measured is honest. How baselines are set for kelp and blue carbon projects — and why they decide integrity.
Priya Raman ·
The honest research frontier: exported kelp carbon, deep-sea decomposition, the dissolved-carbon puzzle and where sequestration science must go next.
Priya Raman ·
Kelp forests don't bury carbon where they grow — they export it. Tracing fragments, dissolved carbon and currents from canopy to the deep sea, and how science tracks them.
Dr. Mara Ellison ·
Trees and kelp both store carbon, but in completely different ledgers. A clear-eyed comparison of storage, durability, measurement, co-benefits and credit quality.
Priya Raman ·
Leakage is when a carbon project moves emissions instead of eliminating them. What it is, how it happens in coastal projects, and how it's accounted for.
Priya Raman ·
Mangroves built the blue carbon market. How mangrove credits work, why restoration projects fail, and what separates a good project from a bad one.
Dr. Mara Ellison ·
Marine biodiversity net gain is moving from land into coastal planning. Here's how BNG works, what it means for developers and councils, and where kelp fits.
Priya Raman ·
How attribution science works for marine heatwaves — fraction of attributable risk, model counterfactuals, and what it means for baselines and reversal risk.
Dr. Lena Fischer ·
Kelp carbon counts only when it leaves the forest and stays gone. The traps, biomarkers, isotopes and models scientists use to track it into the deep.
Priya Raman ·
Monitoring, reporting and verification is where blue carbon's real money goes. A line-item tour of MRV budgets — and the design choices that shrink them.
Priya Raman ·
'Nature positive' is everywhere and defined almost nowhere. Here's what the term actually means, what a credible claim requires, and the red flags of nature greenwash.
Dr. Mara Ellison ·
Ocean alkalinity enhancement removes CO2 by shifting seawater chemistry. Here is the drawdown chain, dose-by-dose: how much carbon, how fast, and where.
Dr. Lena Fischer ·
Ocean alkalinity enhancement removes carbon without planting anything. How is that measured? The chemistry, models and sensors behind OAE's proof problem.
Priya Raman ·
No single body governs ocean carbon removal. From the London Protocol to national permits, here is the patchwork of rules taking shape — and the gaps.
Priya Raman ·
How carbon registries issue, serialise, track and retire blue carbon credits — and what buyers should check before trusting a listing.
Priya Raman ·
How Article 6 actually works for ocean carbon — ITMO trades, corresponding adjustments, the 6.4 mechanism — and what it changes for blue carbon buyers and coastal nations.
Priya Raman ·
Satellites have tracked giant kelp canopies since the 1980s. How remote sensing maps kelp forests, feeds carbon accounting, and where the pixels stop short.
Dr. Mara Ellison ·
Salt marshes lock carbon away between land and sea for centuries. The science of marsh carbon, tidal realignment projects, and the methane caveat.
Priya Raman ·
The ocean is not empty and neither are its rights. Tenure, jurisdiction and Indigenous sea country decide who can claim coastal carbon — before any science does.
Dr. Mara Ellison ·
Seagrass meadows bury carbon in sediments for centuries to millennia. How the biology works, what is at risk, and where seagrass credits stand today.
Dr. Theo Nakamura ·
How seagrass restoration earns carbon credits: the methodologies that exist, how sediment carbon is measured, permanence risks, and what buyers should ask.
Priya Raman ·
Who is allowed to count seaweed carbon, under which rules? Mapping the standards landscape from the IPCC to registries to corporate inventories.
Priya Raman ·