Carbon Credits Begin with Methodologies
Methodologies define the rules that connect a project activity, a counterfactual baseline, monitoring evidence and claimed emission outcomes.
A carbon credit is often discussed as a unit. Before that unit can be issued, a methodology must translate a project activity into a quantified claim.
Methodologies define eligible activities, the project boundary, baseline procedures, additionality tests, monitoring requirements and approaches to uncertainty. For land-based activities they may also address leakage and reversal risk.
Rules shape outcomes
Different methodological choices can produce different results from the same underlying activity. A baseline determines the counterfactual against which change is measured. Monitoring determines which evidence supports the calculation. Conservative assumptions can respond to uncertainty.
Reading a methodology therefore requires attention to both its individual requirements and how those requirements work together. A strong-looking monitoring plan cannot correct an unsuitable baseline, and a plausible activity does not automatically demonstrate additionality.
Official methodology documents and program rules remain the authoritative sources. A structured library can help readers compare them, but summaries should always preserve version information, review dates and direct links to source material.