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AMS-III.F

A Better Use for Pig Poo

CE-a-better-use-for-poo

#656of 1329 in Industrial#26of 43 in AMS-III.F

4.8/ 10
Integrity
4.5
Transparency
4.5
Claim Safety
5.0
Documentation
5.5

Audit Analysis

A VCS composting project in Santa Catarina, Brazil, using two approved methodologies (AMS-III.F and AMS-III.D) to avoid methane emissions from swine manure. The project delivered only about 62% of its pro-rata ex-ante expectation for the monitoring period, which is conservative, but the verification report surfaced multiple material findings including incorrect GWP values, missing farm-level data, and the operation of anaerobic lagoons at three farms during the monitoring period, raising baseline-validity concerns. Several key parameters (buffer pool, FNRB, FPIC, CORSIA/CCP status) are not stated in the available documents.

Red Flags

  • Anaerobic lagoons were still operating at Fazenda Gilmar, Helena, and Colônia Suspiro during the monitoring period, undermining the baseline assumption that composting fully replaced lagoon-based manure management at those sites.
  • The GWP for CH4 was initially miscalculated and had to be corrected to 25 per EB 69 Annex 3, indicating a calculation error in the original MR that was only caught during verification.
  • FPIC status is not stated in the extracted record, creating a safeguards evidence gap for a project operating on multiple farms.

Credit Vintages

No issuances recorded on the registry.

Risk Indicators

Additionality

Combined test present but VVB confirmation not explicitly stated

Permanence

mixed evidence / unresolved risk

Leakage

0% deduction with brief 'deemed negligible' justification only

Baseline

Project-specific modeled baseline; lagoon operation at 3 farms undermines assumption

Safeguards

Grievance mechanism and benefit sharing present; FPIC not stated

Double-claim

CORSIA and CCP status both not stated in available documents

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Analysis ProvenanceScored2026-09-03AMS-III.F. – “Avoidance of methane emissions through composting” and AMS-III.D. – “Methane recovery in animal manure management systems”

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