Embralixo/Araúna - Bragança Landfill Gas Project
#13of 189 in Methane#15of 211 in Brazil#228of 1459 in CDM (UNFCCC)#14of 159 in ACM0001
Audit Analysis
A CDM landfill gas destruction project in Brazil with VVB-confirmed additionality and no material findings, but weakened by a project-specific baseline, inconsistent leakage documentation across the PDD and monitoring report, and several missing MRV data points (verified ERR, FNRB method, usage monitoring method). The project is a methane destruction activity with inherently low permanence risk, yet the absence of a stated buffer pool and the unresolved leakage contradiction leave moderate residual uncertainty.
Red Flags
- Leakage treatment is inconsistent: the PDD (2017) states leakage was quantified, but the 2021 monitoring report records it as 'not addressed' with a 0% deduction — the basis for the zero deduction is unclear
- Total verified ERR is not stated in the extracted record, preventing independent verification of claimed reductions
- Grid emission factor differs between the validation report (0.1581 tCO2/MWh, 2017) and the monitoring report (0.2431 tCO2/MWh, 2016 grid year) — a 54% swing that materially affects the credit calculation
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2011 | 99,814 | 0 | 99,814 | |
| 2019 | 11,184 | 0 | 11,184 | |
| 2020 | 59,971 | 0 | 59,971 | |
| 2022 | 26,095 | 0 | 26,095 | |
| Total | 197,064 | 0 | 197,064 |
Risk Indicators
VVB-confirmed combined test
Destruction project, no reversals
0% deduction, inconsistent docs
Project-specific, mixed method
Mentioned but FPIC/grievance absent
CORSIA/CCP status not stated
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