Darjeeling Revival: Alt x MOL

Audit Analysis

The Darjeeling Revival enhanced weathering project has verified additionality and no reversal events, but the verification report identified 12 material findings and 12 corrective actions spanning LCA quality, monitoring frequency, and statistical methods. The project delivered only ~9% of its pro-rata ex-ante expectation for the first monitoring period, and a significant contradiction exists between the PDD (1,000-year permanence) and the validation report (10,000-year permanence). The 0% leakage deduction with a thin 'deemed negligible' justification is questionable for an agricultural soil intervention.

Project Description

Red Flags

• ⚠Permanence claim contradicts between documents: the PDD states 1,000 years while the validation report (2025-11-12) states 10,000 years — a 10× discrepancy that undermines confidence in the permanence claim
• ⚠12 material findings in the verification report, including use of well-to-tank instead of well-to-wheel emission factors, CO2 instead of CO2e for electricity, reduced porewater sampling frequency, and missing full LCA with uncertainty
• ⚠Verified ERR of 221.35 tCO2e represents only ~9% of the pro-rata ex-ante expectation (~2,400 tCO2e) for the 11.5-month monitoring period, raising questions about the validity of the 12,548 tCO2e lifetime estimate
• ⚠0% leakage deduction justified only as 'deemed negligible' without quantified analysis, which is thin for an agricultural soil intervention where displaced carbon or altered soil processes could offset removals
• ⚠Full LCA, uncertainty and sensitivity analyses, and long-term yield data are all absent from the verification record, with corrective actions requiring their submission

Credit Vintages

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