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PUREnhanced Rock Weathering, 2022IndiaGeneral Methodologyv2.0

Enhanced Rock Weathering - Smallholder farmers in India

PUR-442197 ↗

#2of 9 in DAC#290of 387 in India#42of 109 in Puro.earth (PUR)

4.8/ 10
Integrity
5.5
Transparency
4.5
Claim Safety
4.0
Documentation
5.0

Audit Analysis

This Enhanced Rock Weathering project in India has a verified additionality assessment and no reported reversals, but is undermined by ten material findings (including heavy-metal anomalies and calculation errors), seven outstanding corrective actions, and a 3.3× discrepancy in verified emissions reductions between two verification reports. Key permanence and quantification parameters (buffer pool, FNRB, usage rates) are absent from the available record, limiting confidence in the credit's robustness.

Red Flags

  • Verified ERR jumped from 77.16 tCO2e (Oct 2025 report) to 253.44 tCO2e (Mar 2026 report) for the same monitoring period — a 3.3× increase attributed to calculation corrections, raising data-reliability concerns
  • Ten material findings including elevated soil cadmium, chromium in groundwater exceeding drinking-water limits, and baseline data mislabelled as endline for six farms
  • No buffer pool percentage stated in any available document, leaving permanence risk unquantified for a soil-carbon project
  • Seven corrective actions remain open, including missing radionuclide results, incomplete loss calculations (plant uptake, non-carbonic acid weathering), and an incorrect LCA functional unit

Credit Vintages Exhausted

IssuedRetiredAvailable
2025
77770
2026
2532530
Total3303300

Risk Indicators

Additionality

Combined test, VVB-verified

Permanence

No buffer pool stated; no reversals yet

Leakage

0% deemed negligible, not quantified

Baseline

Project-specific; no reassessment date

Safeguards

FPIC contradiction; grievance mechanism present

Double-claim

CORSIA and CCP status not stated

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Analysis ProvenanceScored2026-08-19General Methodology v2.0

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