Take on a podcast episode from Plan Sea: Ocean Interventions to Address Climate Change, originally published Thu, 28 Ma. Listen: <>

TL;DR

  • Ocean alkalinity enhancement (OAE) scale-up talk is “far too premature” per Ken Paul; local knowledge should shape monitoring design first. Useful pressure on the field’s pacing.
  • Fawn Sharp cites a Carbon to Sea-commissioned figure: ~$1T marine CDR value and 200,000 jobs by 2050. Advocacy number — I haven’t seen it independently sourced.
  • Sovereignty-as-regulatory-arbitrage: in 2008, tribal nations could access Kyoto markets ($32/t) that US companies couldn’t ($2–3/t domestic). First time I’ve heard this mechanism on a podcast.
  • Concrete partnership asks: direct capital access to Indigenous communities, impact benefit agreements, revenue sharing on mCDR in unceded territories — not just consultation.
  • “Two-Eyed Seeing” framing: integrate Indigenous and Western methodologies up front, not run them in parallel and hope they converge.

This episode of Plan Sea was recorded live at Carbon to Sea’s 2026 annual convening in Halifax, with Anna Madlener and Danny Głowacki hosting three Indigenous leaders: Fawn Sharp (five-term Quinault Nation president, former National Congress of American Indians president), Ken Paul (Wolastoqey Nation, former national fisheries director at the Assembly of First Nations), and Francesca Hillery (Tribal Carbon Solutions, Round Valley Tribes). The subject is how Indigenous knowledge systems and tribal sovereignty intersect with OAE development.

Two things here matter operationally. First, Paul’s monitoring argument lands directly on the field’s weakest joint: baseline design. He argues communities with generational knowledge of seasonality, species behavior, and local waters can specify what to monitor, where, and when — Madlener, who works on OAE monitoring, concedes the academic community’s default is to reconstruct via multi-year baseline campaigns what local knowledge already holds. Paul also inverts the objective function: don’t fix ocean acidity for the sake of carbon; improve fish habitat and take the carbon benefit as a consequence. He and Sharp both point to CarbonRun’s river liming work (with real-time, solar-powered, satellite-linked monitoring) as the model. Given every current OAE project sits in coastal waters overlapping treaty fisheries, this isn’t a soft “engagement” point — it’s the social license and litigation exposure question. Paul’s blunt version: develop OAE without First Nations and “we’d have to see you in court.”

Second, Sharp’s sovereignty-market anecdote deserves attention from anyone thinking about mCDR regulatory pathways. In 2008 she organized five US tribes and two Canadian First Nations at COP in Poznań to access international carbon markets that non-signatory-status locked US companies out of — global prices at $32/t versus $2–3/t on the Chicago Climate Exchange. Her claim: tribal nations can build regulatory frameworks and enter markets faster than acts of Congress allow, making them potential first-mover jurisdictions for marine CDR deployment. Whether that survives contact with today’s Article 6 machinery is untested, but the mechanism is real.

Caveats: the $1T/200,000-jobs figure and the “Indigenous peoples govern 80% of remaining biodiversity” statistic (attributed to a World Economic Forum report) are stated without sourcing detail — treat both as directional. And there’s a substantial portion on prophecy, Creator-centered framing, and critiques of commodifying nature that practitioners will weigh differently depending on their priors; note Sharp simultaneously critiques carbon-credit finance and organizes to access it, a tension the hosts don’t probe.

Worth an hour for OAE developers siting coastal projects, MRV (measurement, reporting, and verification) designers wrestling with baselines, and funders structuring community benefit agreements. Skippable if you want technical OAE chemistry — there’s none here.