Stephen Lezak

Methodology focus

Researcher at the Berkeley Carbon Trading Project and frequent co-author with Barbara Haya. Co-authored the 2025 California cap-and-trade critique that triggered the current legislative review of the state's offset programme.

Trellison / LedgerWell intersection. Warm connector to Haya.

Affiliation

Berkeley / Haya co-author

Role

Researcher

Axis

Integrity Critics

Tier

Tier 1

Selected publications

2025 — California's cap-and-trade is wasting money — here's how to fix it (op-ed with Haya). San Francisco Chronicle.
2025 — California Cap-and-Trade Policy Brief (with Haya). Berkeley Carbon Trading Project.
Various — Berkeley Carbon Trading Project policy briefs. BCTP.

Alignment with proof packs

Their methodology / role	Proof-pack / Trellison fit
CA-specific compliance-market expertise	Proof packs map onto CA ARB protocol compliance requirements
Policy-brief writing	Joint brief publication pipeline with BCTP

Collaboration concepts

Concept 1

CA compliance-market proof-pack integration white paper

Specific proposal for CA ARB integration.

Concept 2

Entry path to Haya: warm-connector introduction

Lezak is the natural warm-intro path to Haya for the first conversation.

Outreach approach

Proposed opening message

Subject: A reference implementation for your integrity thesis

Dear Stephen Lezak,

We have been reading your published critique of carbon market integrity as a design specification rather than commentary. Trellison Institute has been building a per-tonne open-data verification instrument — we call the artefact a proof pack — that tries to implement what your work argues for.

I would welcome a 30-minute conversation to show you the current alpha. We are not asking for endorsement; we are asking for methodology critique and, if useful, an offer of alpha access for your active work. Independent negative evaluations would be published alongside positive ones.

A one-page methodology brief that maps your work to proof-pack schema fields — with gaps flagged honestly — is attached.

With respect,
Rob Stillwell
Director, Trellison Institute

What we do not ask for

Endorsement of Trellison, LedgerWell, DaedArch, or any affiliated entity.
Exclusivity or first-look rights on research findings.
Unpaid labour. Any advisor role is compensated with a modest honorarium and disclosed on the record.

Disclosure: Compiled from public sources through April 2026. Inclusion does not imply endorsement, affiliation, or reciprocal interest. Corrections: About.

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