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Try a lesson · MRV & verification readiness

From data to a defensible claim

Calculate a reduction. Check the evidence. Decide what can be claimed.

About 12 minutes · Illustrative data · Ungraded practice

Step 1 of 4

Understand

A calculation is only as defensible as its inputs. Your task is to connect each number to an evidence source and identify what still needs checking.

By the end, you can

  • Calculate a simplified net emissions reduction.
  • Distinguish a calculated result from an issued carbon credit.
  • Identify an evidence gap before accepting a claim.

Three quantities, one calculation

Baseline emissions
The estimated emissions in the defined scenario without the project.
Project emissions
Emissions from the project scenario over the same reporting period and boundary.
Leakage
Relevant emissions increases outside the project boundary attributable to the project.

Net reduction = baseline − project − leakage

This teaching equation omits methodology-specific adjustments, uncertainty and deductions. Real projects must use their applicable methodology, tools and programme rules.

Sources & scope

Original Supacare teaching example. All project figures are fictional. Consult current methodology and programme requirements for actual projects.

Verra: Develop a VCS project (opens in a new tab)