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.