Governance & Policy

Kyoto Protocol

Meaning statusEstablishedSource recordDirect document linkedWhy these are different

Definition

The Kyoto Protocol is a treaty adopted in 1997 under the UNFCCC, in force from 2005. It set legally binding emission reduction targets for industrialised country parties across two commitment periods and created market mechanisms — emissions trading, the Clean Development Mechanism and Joint Implementation — that pioneered international carbon crediting.

References

UNFCCCKyoto Protocol

Targets, commitment periods and mechanisms

UNFCCCThe Convention

Parent framework context

Overview

What it means

It was the first binding climate treaty, but its coverage shrank as major emitters stayed outside or withdrew, and it was superseded by the Paris Agreement's universal approach.

How it is used

Referenced historically for carbon-market design and the CDM credits still transitioning into Article 6 systems; cited in debates on differentiation between countries.

Why it matters

Its mechanisms created the template — and the cautionary lessons — for today's carbon markets and the Paris Agreement Crediting Mechanism.

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Meaning status
Established
Verification date
Not recorded
Last updated
15 Aug 2026
What the classifications mean

Meaning status: Established

EstablishedCurrentMultiple definitionsContestedEmergingIndexed