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14Would it have happened anyway?

Additionality: the counterfactual question

Why additionality is a central but difficult quality question, and what transparent documentation can reveal without turning it into a badge.

Last reviewed

01CarbonBlaze explainer

Additionality compares a claim with an alternative future.

It asks whether a credited emissions outcome would have occurred without the incentive associated with credit revenue. Because the alternative cannot be observed directly, it relies on defined rules, evidence, and scrutiny.

02CarbonBlaze explainer

Evidence can make the question more transparent.

Methodologies may address regulation, common practice, finance, barriers, baselines, and monitoring. Readers can ask which test is used, what evidence is public, and how assumptions are treated.

03CarbonBlaze explainer

It is one question among several.

Additionality does not settle permanence, leakage, safeguards, quantification, tracking, or how a buyer should describe a credit.

Common questions

Can a short project summary prove additionality?

No. The methodology, project documents, and program requirements provide more useful context.

Does price prove additionality?

No. Price reflects many factors and is not standalone evidence.