Sorus Consulting Discuss a Project

ARR Technical Audit and Due Diligence Experience

We combine field experience with modeling and geospatial analysis for forest carbon diligence and MRV readiness.

Project review
  • Eligibility and land-use history review
  • Baseline and additionality assessment
  • Leakage, permanence, and reversal risk framing
  • Assumption review and documentation QA
Field crew measuring tree diameter for ARR carbon inventory and growth modeling
Technical deliverables
  • Decision-ready diligence reports
  • MRV plan drafts and verification readiness
  • Growth model scenario summaries
  • Geospatial screening and risk overlays

Technical evidence from ARR audits

Anonymized technical visuals that mirror the artifacts we deliver during ARR due diligence and verification readiness.

Anonymized geospatial risk overlay showing ARR project boundaries and encroachment risk zones

Geospatial risk overlay mapping encroachment exposure versus project boundaries.

Anonymized growth model chart comparing baseline and downside ARR yield projections

Growth model sensitivity chart comparing baseline and downside yield projections.

Micro-case studies from ARR diligence engagements

Anonymized examples of where independent technical audits changed investment, procurement, or verification outcomes.

ARR baseline stress-test for a Central Mexico project

Independent technical audit identified baseline assumptions that would have overstated near-term credit delivery. The project team adjusted the procurement model before pricing.

Verra VM0047 methodology review for a Western Canada ARR program

Reviewed eligibility, stratification, and monitoring design to align with VM0047 requirements and improve verification readiness prior to submission.

Survivorship risk review for a Southern Rockies ARR portfolio

Assessed maintenance capacity, fire exposure, and mortality assumptions, leading to a revised planting schedule and contingency plan.