git:20260729.4a3a4d0 to git:20260729.8dd5ad0

1 added, 0 removed. Audit A to A.

---

name: climate-mrv

description: "Playbook for climate / carbon Measurement-Reporting-Verification — GHG Protocol Scope 1/2/3, SBTi targets, CDP disclosure, EU CBAM, EPA GHGRP, ISO 14064, double-counting prevention, attestation."

---

## Codex host binding

- Treat references to Claude slash workflows as the equivalently named Codex skill.

- Before delegating to any specialist, read the `great-pm-runtime` skill and the selected packaged role file.

- Treat "invoke", "assign", "delegate", "spawn", and source Agent-tool instructions as a required Codex `spawn_agent` call with that role and a bounded assignment.

+ - Set `task_name` to the exact canonical role name from the selected role file; never shorten, paraphrase, or invent specialist names.

- Store every returned agent identifier. Never call a wait tool until a spawn has returned an identifier, and wait only on identifiers returned by successful spawns.

- If `spawn_agent` is unavailable or a spawn fails, report BLOCKED; do not impersonate the specialist or wait on an empty agent set.

- Resolve bundled paths from the installed GreatPM plugin root.

- Ignore Claude-only model aliases, colors, turn limits, and tool allowlists.

- Preserve GreatPM human gates, governance, state, and reporting contracts.

# Climate MRV — product-side playbook

MRV = Measurement, Reporting, Verification. Climate / carbon claims must

be measurable, reportable, and verifiable — increasingly required by

regulation (CSRD in EU, SEC climate disclosure in US) and audited.

Greenwashing penalties have arrived. PMs building climate products need

this frame.

## 1. The three scopes (GHG Protocol)

| Scope | What | Example |

|---|---|---|

| 1 | Direct emissions from owned/controlled sources | Company-owned vehicles, on-site fuel combustion |

| 2 | Indirect emissions from purchased energy | Electricity from grid |

| 3 | All other indirect emissions in value chain | Supply chain (upstream), product use (downstream), employee commuting, business travel |

Scope 3 is usually the largest AND hardest to measure. Methodology choice

(spend-based vs activity-based vs supplier-specific) matters hugely.

## 2. Standards landscape

### GHG Protocol (foundational)

- Corporate Accounting and Reporting Standard

- Scope 2 Guidance

- Scope 3 Guidance

- Sector-specific guidance

### ISO 14064-1 / 14064-2 / 14064-3

- 14064-1: org-level GHG inventory

- 14064-2: project-level GHG accounting (offsets)

- 14064-3: verification + validation

### SBTi (Science Based Targets initiative)

- Sets near-term (5-10 yr) and net-zero (~2050) targets.

- Aligned with 1.5°C trajectory.

- Validation required (cost + 6-12 months).

### CDP

- Disclosure platform (climate, water, forests).

- Scored A-D-.

- Increasingly required by customers.

## 3. Regulatory frame

### EU

- **CSRD (Corporate Sustainability Reporting Directive)**: phased in;

most large companies must report by 2025-2026.

- **CBAM (Carbon Border Adjustment Mechanism)**: tariff on carbon-intensive

imports (steel, cement, aluminum, fertilizers, electricity, hydrogen).

Transition 2023-2025; full enforcement 2026.

- **Green Claims Directive**: bans vague green claims; substantiation

required.

### US

- **SEC Climate Rule (2024)**: Scope 1+2 disclosure for large registrants;

Scope 3 only if material (and litigated).

- **EPA GHGRP (Greenhouse Gas Reporting Program)**: facility-level for

large emitters.

- **California SB 253 + SB 261**: full Scope 1+2+3 disclosure for

large companies doing business in CA.

### Voluntary carbon markets

- **Verra (VCS)**, **Gold Standard**, **Puro.earth**, etc.

- Quality crisis 2022-2024 led to standards tightening.

- ICVCM Core Carbon Principles emerging as quality bar.

## 4. The verification chain

For credible MRV:

```

Activity data → Emission factor → Calculated emissions →

Documented methodology → Internal review → Third-party verification →

Public disclosure

```

Every step must be traceable. "Black-box" calculation = uncredible.

## 5. Carbon-accounting software requirements

If building a carbon-accounting platform:

- **Activity data ingestion**: utility bills, fuel receipts, travel data,

supplier invoices. Must handle structured + unstructured + variable

quality.

- **Emission factor library**: maintained, region-specific, time-versioned.

Sources: EPA, DEFRA, IPCC, ecoinvent.

- **Methodology transparency**: every number traceable to a method.

- **Double-counting prevention**: especially for Scope 2 (location-based

vs market-based) and offsets.

- **Audit trail**: immutable, exportable (verifiers need it).

- **Multi-standard output**: GHG Protocol, ISO 14064, CDP format, CSRD

ESRS-E1 format.

## 6. Carbon offset / removal platforms

If building an offset / removal marketplace:

- **Methodology validation**: registered with Verra / GS / Puro / etc.

- **Project-level audit**: independent verification per credit issuance.

- **Vintage tracking**: when was the credit generated; which compliance

period it covers.

- **Retirement**: credits are single-use; once retired, must be

permanently retired in the registry.

- **Double-counting prevention**: corresponding adjustments under

Article 6 (Paris Agreement) if international.

- **Permanence**: nature-based vs engineered; different risk profiles.

## 7. Common greenwashing risks (now actionable under Green Claims Directive)

- "Carbon neutral" without substantiation

- "Sustainable" without measurement

- "Plastic-free" when packaging contains plastic

- "100% renewable" via market-based REC (Scope 2) without disclosing

it's not actually 100% locational

- Offset claims for unverified credits

- Net-zero claim without science-aligned target

## 8. PM checklist for sustainability claims

- [ ] Claim grounded in measurement (not aspiration)

- [ ] Scope (1 / 2 / 3) explicit

- [ ] Methodology disclosed

- [ ] Verification status disclosed (verified / pending / unverified)

- [ ] Boundary defined (operational, financial, equity)

- [ ] Reporting period explicit

- [ ] Baselines + comparison year stated

- [ ] Offset use disclosed separately from reductions

- [ ] Third-party verification for material claims

- [ ] Disclosure aligned with relevant standard (CDP, CSRD ESRS E1, TCFD)

## 9. When great-pm agents consume this skill

| Agent | What it pulls from here |

|---|---|

| ai-product-strategist | Methodology lock-in as moat; standard-shift risk |

| data-strategist | Activity data ingestion + emission factor library |

| spec-writer | Audit trail; verification UX |

| ai-ethics-pm | Greenwashing risk; disclosure UX |

| ai-launch-strategist | Substantiation requirements before claims go public |

## 10. References

- GHG Protocol: ghgprotocol.org

- SBTi: sciencebasedtargets.org

- CDP: cdp.net

- ISO 14064: iso.org

- CSRD ESRS: efrag.org

- CBAM: ec.europa.eu/info/business-economy-euro/banking-and-finance/

- SEC Climate Rule: sec.gov

- ICVCM: icvcm.org

- Verra: verra.org

## 11. The honesty filter

If a sustainability claim doesn't name (a) the scope, (b) the

methodology, (c) the verification status, it's probably greenwashing.

Build the product to make claims that survive scrutiny.