An ISO 14067 index used to compare greenhouse gases by radiative forcing relative to carbon dioxide.
Global warming potential is the radiative forcing comparison logic that allows different greenhouse gases to be translated into a common CO2e basis. It is not a greenhouse gas itself and should be documented with the time horizon used.
This page follows ISO 14067:2018. GWP is a conversion metric for product-footprint calculations, not a standalone proof that a product is low carbon.
ISO 14067:2018 - Greenhouse gases — Carbon footprint of products
index, based on radiative properties of GHGs (3.1.2.1), measuring the radiative forcing following a pulse emission of a unit mass of a given GHG in the present-day atmosphere integrated over a chosen time horizon, relative to that of carbon dioxide (CO2)
Reference: 3.1.2.4
This term originates in ISO 14067:2018 and/or ISO 14044 LCA methodology. It is used in EU product regulation — particularly under the EU Battery Regulation (PEF method for carbon footprint) and ESPR (environmental footprint) — because both regulations require lifecycle-based quantification of environmental impacts. Practitioners applying these regulations should be familiar with these LCA/PEF concepts to correctly scope, conduct, and verify product-level environmental assessments.
Implementation records should capture the GWP value, time horizon, gas identifier, CO2e conversion, source table, assessment report reference, calculation method, and product-footprint result link.
Global warming potential is a climate-metric conversion control: the evidence consequence is that CO2e figures can be traced back to gas-specific quantities and the conversion assumptions that made them comparable.