Urban Greenhouse Gas Conference and Stakeholder Summit 2025

The event is jointly hosted by the WMO Integrated Global Greenhouse Gas Information System (IG3IS) and ICOS Cities Project.

The draft conference agenda is available here

Event Highlights

•Showcase the latest findings from urban greenhouse gas researchers

•Workshop sessions to review and finalize the draft IG3IS Urban Good Practice Guidelines (open for public comment here)

•Dedicated day to connect scientists and stakeholders

Event Brief

Experts from around the world gathered to share cutting-edge research and case studies aimed at enhancing and expanding urban GHG monitoring. The conference facilitated the exchange of ideas among over 250 scientists and city representatives, all united by the common goal of shaping the future of urban climate action. 

The first two days of the conference concentrated on technical aspects, featuring multiple sessions and presentations dedicated to specific components of the guidelines. There were also poster sessions available both in person and online. Each half-day session included discussions to explore the guidelines, address potential revisions, and identify gaps or challenges in current research. As the final discussion sessions approached, IG3IS reflected on the next steps for these guidelines and considered how to further develop them. The conference aimed to celebrate the hard work behind the guidelines and examine the related research. 

The final day of the conference was designed to foster collaboration among a diverse range of stakeholders, encouraging the sharing of perspectives crucial for developing more robust GHG monitoring systems. Participants engaged in panel discussions about the importance of accurate climate data in improving decision-making processes. By bringing together various experts and practitioners, the aim was to jointly identify effective strategies and best practices that could enhance climate data management. This collaborative effort is intended to lead to informed actions that tackle urban climate change mitigation challenges. 

The outcome of this event will be an updated draft of the Urban Good Practice Guidelines—a key document aimed at ensuring consistent, accessible, and accurate climate action on urban GHGs globally.

Conference Materials 

Oral Presentations

Sl. No.

Title of Oral Presentation

Presenter 

Affiliation

D1O1

CHETNA: City-wise High-resolution Carbon Emissions Tracking and Nationwide Analysis for 100 Indian Cities

Chuanlong Zhou

Laboratoire des Sciences du Climat et de l’Environnement (LSCE), Franc

D1O2

Fluorinated gases (F-gases) emission process models 

Bo Yao

Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China

D1O3

Guiding efforts in building city emission inventories: lessons learned from an intercomparison of bottom-up and downscaled inventories

Ingrid Super

TNO

D1O4

High-resolution estimation of fossil fuel CO2 in U.S. cities: advances, assessment, and emergent properties

Kevin Gurney

Northern Arizona University (NAU)

D1O5

Towards observation-based CO2 emission estimates for the city of Zürich – a lively journey

Lukas Emmenegger

Laboratory for Air Pollution and Environmental Technology

D1O6

Advanced monitoring of urban biogenic carbon sinks across urban green spaces  

Leena Järvi

University of Helsinki

D1O7

Principles, applications and limitations of eddy covariance flux measurements in cities – IG3IS Urban Good Practice Guidelines

Andreas Christen

University of Freiburg, Germany

D1O8

Using greenhouse gas gradient and variance measurements to map urban emissions

Kenneth Davis

The Pennsylvania State University

D1O9

Sectoral attribution of measured CO2, NOx, and CO eddy-covariance fluxes in Zurich using a linear mixing model

Rainer Vincent Hilland

 

Department of Environmental Meteorology, University of Freiburg, Germany

D1O10

Monitoring Greenhouse Gas Emissions with Ground-Based Remote Sensing: What We Learn from MUCCnet

Jia Chen

Environmental Sensing and Modeling, Technical University of Munich

D2O1

Urban-AMMS: Urban Atmospheric Monitoring and Modeling System

Miguel Cahuich Lopez

Earth System Science Interdisciplinary Center, University of Maryland

D2O2

Introduction to the Los Angeles Megacities Carbon Project

Jooil Kim

Scripps Institution of Oceanography

D2O3

Building urban monitoring systems - from network design to emission quantification

Sanam Vardag

Heidelberg University

D2O4

Quantifying Greenhouse Gas Emissions Using Tracer Ratio Methods: Case Studies and Applications

Ute Karstens

ICOS ERIC - Carbon Portal, Department of Physical Geography and Ecosystem Sciences, Lund University

D2O5

Support Carbon Neutral Goal with a High-resolution Carbon Monitoring System in Beijing

Pengfei Han

Institute of Atmospheric Physics, Chinese Academy of Sciences

D2O6

Constraining Urban CO2 Emissions Using Combined Ground and Satellite Observations with Bayesian Inverse Modeling in Seoul

Sojung Sim

Seoul National University

D2O7

How does CO2 affect climate? A teaching module for grades 7 to 9

Astrid Hügli

ahsc

 

D2O8

From Science to Service: MeteoCarbone®—An Urban CO2 Monitoring Tool and Its Application to Several Paris Case Studies to Support Urban GHG Emission Management 

David Duccini

Origins.earth, SUEZ Group, France

D2O9

Scenarios for reducing CO2 emissions from the Aix-Marseille metropolis area (France) from the interdisciplinary COoL-AMmetropolis project.

Irène Xueref-Remy

Aix Marseille University, Avignon Université, France

Stakeholder Summit

Sl. No.

Presentation Title

Presenter

Affilitaion

D3P1

Eating the emissions elephant – efforts of an Australian water utility to improve emissions reporting and reduce emissions

Nick Crosbie

Melbourne Water

D3P2

Atmospheric constraints on methane emissions from wastewater treatment plants in Melbourne, Australia

Cathy Trudinger

CSIRO Environment

D3P3

CarbonWatch-Urban: New Zealand case studies in measuring urban greenhouse gas emissions

Timothy Hilton

GNS Science Te Pū Ao

D3P4

Bridging the Gap: Stakeholder-Driven Implementation of Urban Greenhouse Gas Monitoring Systems

Sonia Wang

Senior Advisor, Data Foundation

D3P5

Urban Mapping of CO2 and Air Quality: BEACO2N

Ronald Cohen

UC Berkeley

Poster Day 01

Sl. No.

Poster Title

Presenter

Affilitaion

D1P1

Assessing the effect of carbon emissions from Motorbike taxis in the Urban transport system: A Case of Kampala City in Uganda.

Willy Mugwanya 

Global Foundations for Rural and Urban Development Initiatives (GFRUDI)

D1P2

High-Resolution Accounting for the Urban Biogenic CO₂ Emissions: Insights from the Metropolitan Area of Barcelona

Qing Luo

Institute of Environmental Sciences and Technology, Universitat Autònoma de Barcelona(UAB), Barcelona, Spain

D1P3

NOx as Proxy for Estimating Fossil Fuel CO2 Emissions in Urban Environments

Hannes Juchem

Institute of Environmental Physics, Heidelberg University

D1P4

Verifying urban CO2 emissions by having two different prior information: a case study in Korea Carbon Project (KCP)

Munsu Park

Seoul National University

D1P5

Quantification of urban biogenic CO2 fluxes using a satellite-based model (VPRM) and field observations

Stavros Stagakis

Department of Environmental Sciences, University of Basel, Switzerland

D1P6

Investigating of carbon dioxide emissions in the urban atmosphere of Krakow, Southern Poland

Miroslaw Zimnoch

AGH University of Krakow

D1P7

Urban Carbon Reduction Policy Evaluation Using a Hybrid GHG Inventory of the Korea Carbon Project

Dong Yeong Chang

Seoul National University

D1P8

Scalable high-resolution bottom-up GHG emission inventories based on open data

Sebastian Block

Heidelberg Institute for Geoinformation Technology

D1P9

A Near-Real-Time High-Resolution Fossil Fuel CO2 Inventory for Metropolitan France and its Potential for Emission Scenario Planning

Hervé Utard

Origins.earth

D1P10

Energetic analyses of the power, transport and industrial sectors in Uganda to establish low carbon scenarios

Florence Kulabako 

Grassroots Community Environmental Development Initiative (GCDI)

D1P11

Evaluation of Vegetation Photosynthesis and Respiration Model Parameterisations for Estimating Carbon Flux from Managed Turfgrass Lawns

Julia Marrs

National Institute of Standards and Technology

D1P12

High-resolution observational study of urban greenhouse gas emissions in India: Identifying key emission sources, variability, and transport pathways

Yogesh Tiwari

Indian Institute of Tropical Meteorology, Pune, Ministry of Earth Sciences, Govt of India

D1P13

Physical and Environmental Factors Limiting the Measurement of Anthropogenic CO2 Emissions from Space-based Platforms: Considerations for Future Monitoring Requirements

Dustin Roten

Jet Propulsion Laboratory, California Institute of Technology

D1P14

How much does urban greenery reduce our carbon emissions?

Erik Velasco

Molina Center for Energy and the Environment

D1P15

The Importance of Hyperlocal Meteorological Data in Understanding Air Pollution: Correlations with PM and Toxic Gas Behavior

Max Interbrick

Sparrow Analytics

D1P16

Leveraging public/private partnerships for data collection

Colm Sweeney

NOAA

D1P17

Monitoring urban CO2 emissions from space: current status and future potential

Abhishek Chatterjee

NASA Jet Propulsion Laboratory

D1P18

Approaches to Evaluate Urban Emissions-

Gloria Banda

Ministry of Agriculture

D1P19

Spatial and temporal examination of Air Quality in Western Uganda

Brendah Nassiwa

Appropriate Rural Community Agricultural Development Agency (ARCADA),

D1P20

Identifying Urban Carbon Emission Peaks and Synergizing Reductions of Carbon Emissions and Air Pollutants through Tree-ring 14C

Zhenchuan Niu

Institute of Earth Environment, Chinese Academy of Sciences

D1P21

Tall tower GHG observations from industries and residential areas NW of Copenhagen, Denmark 

Andreas Ibrom

DTU-Sustain , Technical University of Denmark (DTU) , Kgs. Lyngby, Denmark 

D1P22

Bridging Territorial and Consumption-Based Emissions for Urban Climate Action Assessments

Ying Yu

University of North Carolina at Chapel Hill

D1P23

New ISO Standard for Greenhouse Gas Measurements

Hratch Semerjian

University of Maryland

D1P24

All-in-one analyzer for urban GHG and trace gas monitoring

Morten Hundt

MIRO Analytical AG

D1P25

Methane emission monitoring at wastewater treatment plants in Europe and Australia

Pieter de Jong

Nick Crosbie

Melbourne Water

D1P26

Characterizing large nitrous oxide N2O emissions from urban areas

Roisin Commane

Columbia University, New York, USA

D1P27

Seasonal Variations in Methane Mole Fraction and Stable Isotope Ratios in Debrecen, Hungary

Tamás Varga

HUN-REN Institute for Nuclear Research

D1P28

Using mobile surveys to track methane emissions in Canadian cities

Felix Vogel

Environment and Climate Change Canada

D1P29

14C-Based Separation of Fossil and Non-Fossil CO2 Fluxes in Cities Using Relaxed Eddy Accumulation: Results from Tall-Tower Measurements in Zurich, Paris and Munich

Ann-Kristin Kunz

University of Freiburg, Freiburg, Germany 

D1P30

Introducing the Korea Carbon Project Flux Network: Quantifying CO₂ Emissions and Absorption Dynamics from Urban-Industrial Sources

Geunjae Choi

Seoul National University

D1P31

Inter-city comparison of methane emissions measured using tall-tower eddy covariance and inventory analysis

Mary Kang

McGill University

D1P32

Atmospheric O2/N2 measurements as a proxy for fossil fuel CO2 in the city of Heidelberg, Germany

Penelope Pickers

University of East Anglia

D1P33

A Decade of Urban Methane Monitoring in Indianapolis, USA: Insights from a Continuous Tower Network and the Evolution Towards Near-Realtime Monitoring

Zachary Barkle

Penn State University

D1P34

Source-Specific Quantification of Carbon Dioxide Fluxes in Urban Settings

Samantha Murphy

Penn State Department of Meteorology and Atmospheric Science

D1P35

An assessment of CO2 emissions measured by a tall-tower eddy-covariance system in the city of Zurich

Armin Sigmund

University of Basel

D1P36

Increasing accessibility to standards and comparisons for atmospheric CO2 amount fraction measurements

Emmal Safi

National Physical Laboratory

D1P37

Leveraging GHGSat’s Methane Monitoring Data to Address the Urban Ozone Challenge

Carles Debart

GHGSat

D1P38

Long open-path greenhouse gas observations in urban areas

Kevin Cossel

NIST

Poster Day 02

Sl. No.

Poster Title

Presenter

Affilitaion

D2P1

Modelling and Forecasting Greenhouse Gas Emissions in Bangladesh: A Seasonal-Adjusted AI-based Hybrid Time‑Series Approach

Rumana Rois

Department of Statistics and Data Science, Jahangirnagar University

D2P2

Methane (CH4) point sources fine-scale modeling in the Aix-Marseille-Provence metropolis area, France

Khalid Mehmood

Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE (Institut Méditerranéen de Biodiversité et d’Ecologie marine et continentale), Aix, Marseille, France

D2P3

Predicting Methane Emissions from Agricultural Sources Using Machine Learning: A Data Gap-Filling Approach

Ahmed Abdelnaby

Egyptian Meterological Authority

D2P4

A Deep Learning Approach to Inferring CO2 Emissions de-novo from Measurements of a Real-Time Sensor Network

Ronald Cohen

UC Berkeley

D2P5

Greenhouse Gas in Bangladesh  and   a Case Study Demonstration  on the capital  City  of Dhaka in Bangladesh regards to greenhouse gas (CO2).

Anowar Hossen

Bangladesh Meteorological Department

D2P6

Nature Education in Urban Environment.

Abdul Aziz Kromah

Department of Urban Affairs, Ministry of Internal Affairs

D2P7

An Overview of Climate Change and Air Pollution: Special Case of Kathmandu

Narayan Prasad Gautam

Tribhuvan University

D2P8

Urban-scale inversions of methane emissions using ground-based measurements: A case study of Melbourne, Australia 

Nasimeh Shahrokhi 

Cathy Trudinger

CSIRO

D2P9

Development and operation of the INVERSE KOREA system to support WMO IG3IS

Daegeun Shin

 

NIMS (National Institute of Meteorological Sciences) / The Korea Meteorological Administration (KMA)

D2P10

The Megacities Carbon Project

Charles Miller

NASA Jet Propulsion Laboratory, California Institute of Technology

D2P11

Evaluating the CO2 emission inventory of the city of Zurich using Eddy-covariance measurements at a single tall tower site

Dominik Brunner

Empa, Swiss Federal Laboratories for Materials Science and Technology

D2P12

Methane sources in cities re-interpretated using new laboratory results

Roisin Commane

Columbia University, New York, USA

D2P13

Identifying the effect of moisture on NDIR-based CO₂ sensor in urban monitoring site of the Korea Carbon Project (KCP)

Jaewon Shin

Seoul National University

D2P14

Towards unraveling urban scale emissions of greenhouse gases in Korea: Regional inversion framework and urban carbon cycle observations

Doyoon Kwon

 

Yonsei University, South Korea

D2P15

Top-down estimates of CO2 and CH4 emissions in Korea based on an inverse modeling framework

Bonhoon Koo

Yonsei University

D2P16

Biogenic Carbon Sequestration in Cities: Applying Scalable, Cost-Effective and Science-Based Models to Support Services and End-Users 

Liisa Kulmala

Finnish Meteorological Institute

D2P17

High-resolution modelling at urban scales

Maarten Krol

Wageningen University, the Netherlands

D2P18

Bayesian framework for evaluation of methane emissions in US cities

Kimberly L. Mueller

NIST

D2P19

Understanding Methane Emissions in US cities

Anna Karion

NIST

D2P20

Urban CO2 and CH4 atmospheric measurements in two cities of the Northern Italy: Milan and Bologna

Paolo Cristofanelli

CNR

D2P21

Impacts of the 2024 Olympic Games on Urban CO2 Emissions in Paris

Angélica Centanaro

Origins.earth

D2P22

Methane Emissions from Landfills of Municipal Solid Waste in Lima, Peru: Case Study of El Zapallal Landfill

Ewonny Ttito Moya

Hallym University / Glasgow Caledonian University

D2P23

Regional and Socioeconomic Characteristics in Global C40 Cities’ CO2 Emissions Revealed from Space

Doyeon Ahn

Morgan State University / NASA Goddard Flight Space Center

D2P24

Sources and factors controlling ozone background over Egypt

Hesham Hassan

Egyptian Meteorological Authority

D2P25

Advancing the Development of Local Climate Plans in Sub-Saharan Africa: Participatory and Gender-Sensitive Approaches to Reducing Greenhouse Gas Emissions - A Case Study of the BRIDGE Project and ICLEI Africa's Initiatives in Cameroon

Blondel Silenou Demanou 

ICLEI AFRICA 

D2P26

Strategies to mitigate municipal waste and greenhouse gas emissions in kiira municipality in Wakiso District.

Lydia Kikomeko Nakatte 

Organization for Sustainable Development and Environmental Conservation (OSDEC)

D2P27

RESPIRE CLIMATE: Spain National Greenhouse Gas Emission Monitoring System

Karinna Matozinhos

Barcelona Supercomputing Center

D2P28

Pervasive gas sensing using optical fibers

Gara Villalba

Universitat Autònoma de Barcelona (UAB)

D2P29

Identification and quantification of fugitive methane emissions from urban infrastructure in South Korea

Jaewon Joo

Seoul National University

D2P30

Trends and Projections of Greenhouse Gas Emissions in Bangladesh: A Time-Series Analysis and Policy Implications

Mohammad Mahboob Hussain Khan

Bangladesh Meteorological Department (BMD)

D2P31

Toward a global urban GHG monitoring network

Giacomo Nicolini

CMCC - Euro-Mediterranean Center on Climate Change, Italy

D2P32

A conceptual prototype of a dashboard for visualising and assessing gridded GHG impacts in municipal settings

Tatu Marttila

Aalto University

D2P33

The ICOS Cities data portal

Alex Vermeulen

ICOS ERIC - Carbon Portal

D2P34

Introduction to urban CO2 monitoring network of the Korea Cabon Project (KCP)

Yeongin Kim

Seoul National University, Korea

D2P35

Analysis of urban CO2 and heat fluxes and evaluation of the SUEWS model using eddy covariance observations from two towers in Heraklion, Greece

Konstantinos Politakos

The Remote Sensing Lab of FORTH – Rslab, Greece

D2P36

Mapping CO2 emissions at the scale of blocks, buildings, and roads

Erik Velasco

Molina Center for Energy and the Environment

Conference programme committee

  • Jocelyn Turnbull
  • Felix Vogel
  • Tim Hilton
  • Kimberly Mueller
  • Claudio D'onofrio
  • Emmanuel Salmon
  • Liisa Ikonen
  • Charlotta Henry
  • Tabare Curras
  • Oksana Tarasova
  • Jarin Tasneem Oyshi