Integrated Global Greenhouse Gas Information System IG3IS
IG3IS Important updates
EGU General Assembly 2025 will be held 27 April–2 May, in Vienna and online. The EGU25 call for abstracts is now open! Apply by 2 December to request financial support and don’t miss the online participant waiver scheme.
The IG3IS session is AS3.43 "Science-based, measurement-based greenhouse gas monitoring and emission estimates in support of national, sub-national, city and industrial climate change mitigation". See details here.
*******************************************************************
Save the Date: Urban Greenhouse Gas Conference and Stakeholder Summit
Dates: April 7-9, 2025
Venue: WMO, Geneva, Switzerland and online
Joint hosts: WMO Integrated Global Greenhouse Gas Information System (IG3IS) and ICOS Cities
Further details and a call for abstracts will follow in November. If you wish to express you interest in participation, please use the form below:
IG3IS Introduction
In response to the rapid rise of greenhouse gas (GHG) concentrations in the atmosphere and the resulting negative impacts, nations, states, cities, private enterprises and individuals are accelerating GHG emission reduction efforts while meeting the needs of global economic development and equity. The urgency, complexity and economic implications of GHG emission reductions demand strategic investment in science-based information for targeting emission reduction opportunities and tracking the efficacy of policies and actions. To help meet these information needs WMO and its partners have initiated the Integrated Global Greenhouse Gas Information System.
IG3IS approach combines atmospheric GHG concentration measurements with human-activity data in a modelling and analysis framework to help decision-makers take better-informed action to reduce emissions of GHG and pollutants that reduce air quality. This service is based on existing and successful measurement and analysis methods and use-cases for which the scientific and technical skill is proven or emerging. IG3IS is used as a common framework to ensure the consistency of methods and approaches between spatial (from facility to national) scales across the globe. With the user perspective in the heart of the initiative, it aims to expand the observational capacity for GHGs, extend it to the regional and urban domains, and develop the information systems and modelling frameworks to provide information about GHG emissions to society, including support to NDCs.
The WMO Executive Council approved the IG3IS Science Implementation Plan at its 70th Session in June 2018. IG3IS was recommended as a common framework to improve estimates of GHG concentrations and fluxes by the 50th session of the UNFCCC Subsidiary Body for Scientific and Technological Advice (SBSTA), as well as in the 2019 Refinement to the 2006 Guidelines for National Greenhouse Gas Inventories adopted and accepted during the 49th Session of the IPCC in May 2019 (Volume I, Chapter 6).
IG3IS Mission
G3IS looks to serve users (decision-makers) who are able or willing to take action to reduce emissions of greenhouse gases (GHGs) and pollutants that reduce air quality. The ultimate success criteria are that the IG3IS information is “used” and guides valuable and additional emission reduction actions, building confidence (and skill) in the role of atmospheric composition measurements as an essential part of the climate change mitigation environmental remediation tool kit.
