IG3IS National-scale Applications of the Science-based Quantification of Emissions and Removals

The Integrated Global Greenhouse Gas Information System (IG³IS) national-scale applications of science-based quantification of emissions and removals was held at the World Meteorological Organization (WMO) Headquarters in Geneva, Switzerland, and online from 30 June to 1 July.

IG³IS is an initiative by the Global Atmosphere Watch (GAW) Programme of the WMO aimed at developing an innovative service to support greenhouse gas (GHG) emissions management. The IG³IS approach integrates atmospheric observations with activity-based GHG emissions estimates within a modelling framework. This integration enhances the timeliness and quality of emission estimates. It is applicable at various decision-relevant scales, ranging from individual facilities to urban areas and national levels. At the national scale, this approach can complement traditional inventories used for reporting to the United Nations Framework Convention on Climate Change (UNFCCC) and for planning Nationally Determined Contributions (NDC).

The participants' list is available here.

The presentations can be accessed from the table below:

Methodologies Session on Emission Estimates
IPCC TFI tiered guidelines	Laura Dawidowski Takeshi Enoki María José Sanz Sánchez
UNFCCC transparency and NDC planning	Vitor Gois Ferreira
Main principles of the integrated emission estimation: Introduction of the IG3IS national scale good practices	Anita Ganesan
Lessons learned from the utilisation of the observations to improve national emission reporting in the UK and Switzerland	Stephan Henne
Integrated Emission Estimation at the National Scale
New Zealand	Sara Mikaloff-Fletcher and Joel Gibbs (online)
Germany	Beatrice Ellerhoff
Republic of Korea	Jinkyu Hong (online)
Australia	Cathy Trudinger
Spain	Paula Castesana
Czech Republic	Milan Fischer
California	Jorn Herner
United States of America	Lei Hu (online)
Countries Capabilities and Needs
Costa Rica	Kathia Larissa Aguilar Martín
Dominican Republic	Cecilia Viloria
Togo	Monsieur AFFO-DOGO Abalo
El Salvador	Mario Giovanni Molina Masferrer
Belize	Ms. Kamil Salazar
Libya	Dr. Khalid I. ELFadli
Panel 1: Facilitated discussion with the stakeholders on how to match the needs of the countries and the possible tools/good practices in the community
Flexible Inversion Tool for Inventory Compilers, FIT-Cs	Thomas Kaminski and Hannes Witt (online)
Panel 2: Reconciliation of bottom-up and top-down emission estimates and lessons learned (methodology)
Tools available for countries with limited infrastructure
Emission inventories used in atmospheric research (ODIAC, EDGAR, TNO, CAMS): what is in and how to use	Tom Oda
Lessons learned from the inversion of satellite data on the national scale	Rona Thompson (online)
Global systems and tools (CAMS) and example for the several countries	Richard Engelen (online)
Example of the CAMS product utilization in Estonia	Marek Maasikmets (online)
Community inversion tools and benchmarking	Sander Houweling (online)
P3: Feedback from the inventory community on the good practices document
Network planning tools (footprint analysis, recommended tracers)	John Miller (online)
Recommended observational techniques for greenhouse gases	Lindsay Lan
Financial mechanisms to support infrastructure development	Emma Liu
P4: Way forward to the finalization of the document and evolution of the document

The workshop agenda is available here as a PDF document.

We are currently working on the IG³IS National Scale Greenhouse Gas Emission Observation and Monitoring Good Practice Guidance 2025, and it will be published soon based on the comments and feedback received during the workshop.

For any further information, please contact ig3is@wmo.int.

IG3IS National-scale Applications of the Science-based Quantification of Emissions and Removals

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