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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 does it work?

science-backed methodologies

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

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

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 registry

Built 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

For Food and Ingredient Companies
For Food and Ingredient Companies

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.

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For Commodity Traders & Cooperatives
For Commodity Traders & Cooperatives

You connect farmers with global markets. Impact Units demonstrate verified Scope 3 reductions that build buyer confidence.

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For Fertilizer Producers and distibutors
For Fertilizer Producers and distibutors

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.

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For Partners & Project Developers
For Partners & Project Developers

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.

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Want to see whether your project qualifies for Impact Units?