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Impact Units
Traceable certificates that can move through your supply chain. Each Impact Unit represents a 1 tCO₂e verified reduction from fertilizer practices you’re connected to.
How?

Science-backed methodolgies
Quantify, monitor, and verify GHG reductions using science-based methodologies for fertilizer-related interventions, developed with IFA and industry partners.
Proba methodologies
Independent verification
Approved Verification & Validation Bodies (VVBs) independently review every project, ensuring each Impact Unit is accurate, credible, and aligned with international best practices.
Proba's approved VVBs
Blockchain-secured registry
Every Impact Unit is recorded in a blockchain-secured registry. Each unit is unique, fully traceable, and backed by transparent data.
Look at our registryBuilt for compliance
Claim Scope 3 reductions with confidence. Proba meets the highest global benchmarks for climate integrity:
- Aligned with SBTi and GHG Protocol (FLAG guidance) for credible Scope 3 accounting
- Grounded in the Proba Standard, ICROA-endorsed and audited annually against the ICROA Code of Best Practice
- Developed with the International Fertilizer Association (IFA) and industry leaders, ensuring both scientific rigor and sector relevance
- Verified by independent third-party auditors before issuance, so every Impact Unit can be used with confidence by food companies, co-ops, traders, and fertilizer producers.
Built for, and with, fertilizer producers, food companies, traders
Scope 3 targets don’t meet themselves. Start with the biggest lever in crops — fertilizer emissions — and turn reductions into certified results you can report.
You connect farmers with global markets. Impact Units demonstrate verified Scope 3 reductions that build buyer confidence.
You built the better product. Now prove the impact. With Proba, your low-emission fertilizers come with verifiable reductions — so food companies and traders can use them in Scope 3 reporting.
Not a fertilizer producer, trader, or food company? If you’re developing, financing, or supporting agri-food interventions, Proba can help you turn impact into verified result.