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standard
Puro Enhanced Rock Weathering (ERW) methodology (Edition 2025)
Jurisdiction countryInternational
Instrument typecertification-protocol
Authorityregistry
PathwaysEnhanced rock weathering (agricultural)
Scopecarbon removal only
Statusin-force
DetailPuro.earth launched Edition 2025 of its ERW methodology on 17.11.2025, updating the earlier ERW edition. It aligns with the latest Puro General Rules and the ICVCM CCP. Puro's scientific advisory board approved the final version after public consultation: 144 public comments led to 91 minor and 4 major modifications. Major changes: seven eligible CDR measurement approaches are described, and the m
Stated statusin-force
Pathway scopespecific
Pathway noteThe instrument is the Puro Enhanced Rock Weathering (ERW) methodology, and its soil chemistry sampling and control plot requirements point to ERW on soils.
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