Carbon Offset

Definition

Carbon Offset — A tradable credit representing one tonne of CO₂ reduced, avoided or removed.

Carbon offsets are issued by certified projects that either reduce emissions (renewable energy, efficient cookstoves), avoid them (preventing deforestation) or remove existing CO₂ (afforestation, direct air capture).

Quality varies wildly. Reputable standards include Gold Standard, Verified Carbon Standard (VCS / Verra), Climate Action Reserve and American Carbon Registry. Avoidance credits are systematically over-credited; removal credits are scarcer but more credible. Use the SBTi mitigation hierarchy: reduce first, offset residuals only.

Using Carbon Offset without overreading the claim

A tradable credit representing one tonne of CO₂ reduced, avoided or removed.

This term is not, by itself, proof of a certified product. Its meaning may depend on a technical definition, local rules or the boundaries of a particular claim.

Separate the question the term addresses from questions it does not answer. Material sourcing, labour conditions, chemical safety and disposal need different evidence. Catalogue labels are a starting point for checking that evidence, not a substitute for it.

Carbon Offset: verification guide

CheckActionLimitation
DefinitionAsk what the term means in this claimTechnical concepts and marketing promises are different
BoundaryIdentify materials, locations and stages coveredA claim about one component cannot describe the whole lifecycle
EvidenceRequest methods, assumptions and dated supporting documentsA claim can need evidence without having a dedicated certifier

Before relying on Carbon Offset

  • DefinitionAsk what the term means in this claim
  • BoundaryIdentify materials, locations and stages covered
  • EvidenceRequest methods, assumptions and dated supporting documents

Frequently asked

What does Carbon Offset mean?+

A tradable credit representing one tonne of CO₂ reduced, avoided or removed.

How can I check a Carbon Offset claim?+

Ask what the term means in this claim. Identify materials, locations and stages covered. Request methods, assumptions and dated supporting documents.