Climate & Environment
Wetlands Supplement
Definition
The Wetlands Supplement is the 2013 Supplement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, providing methods to estimate emissions and removals from land use and management of wetlands, including peatlands, flooded land and coastal wetlands such as mangroves and tidal marshes.
References
Source imported for editorial provenance.
This reference provides supporting context for how “Wetlands Supplement” is defined and used.
Overview
How it is used
National inventory compilers apply its methodologies in the land use, land-use change and forestry sector; it underpins reporting of peatland drainage emissions and blue carbon; the 2019 Refinement to the 2006 Guidelines integrated and updated its content.
Why it matters
Wetland soils hold enormous carbon stocks; without the supplement's methods, emissions from their drainage were largely invisible in national accounts, weakening mitigation incentives.