Introduction
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Table of Contents
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Insights from the President of the ICAO Council
| Salvatore Sciacchitano |
Insights from the Secretary General of ICAO
| Juan Carlos Salazar
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| Insights from the Director of the Air Transport Bureau (DATB), ICAO | Mohammed Khalifa Rahma |
A Historic Milestone in Aviation Environmental Progress
| Jane Hupe |
| Outcomes from the 42nd Session of the ICAO Assembly (A42) | ICAO Secretariat |
CHAPTER ONE: AVIATION & ENVIRONMENTAL OUTLOOK
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| Turning Ambition into Action: From the LTAG and Global Framework to International Cooperation | ICAO Secretariat |
| Overview of the Thirteenth Cycle of the Committee on Aviation Environmental Protection (CAEP/13) | Michael Lunter (Netherlands) and Neil Dickson (ICAO CAEP Secretary) |
Environmental Trends in Aviation to 2070
| Gregg G. Fleming (USA DOT Volpe), Darren Rhodes (UK CAA), Roger Schaufele (USA FAA),
Catherine Marthe (Switzerland FOCA), and David Pace (USA DOT Volpe) |
| The State of Global Climate and Hazards posed by Sand and Dust Storms and Wildfires | Greg Brock, Stéphanie Wigniolle and Chris Hewitt (WMO) |
| Bridging the Upper-Air Data Gap | Nicolás Rivaben (WMO) |
| In-Service Aircraft for a Global Observing System | Hannah Clark (IAGOS) |
| ICAO’s work on NOx emissions regulation | Theo Rindlisbacher and Urs Ziegler (Federal Office of Civil Aviation (FOCA), Switzerland) |
| Global cooperation to advance the understanding of Non-CO2 effects in aviation | Stephen Arrowsmith (EASA) |
| Encouraging diversity in the aviation sector | Maria Vittoria Corazza (Sapienza University of Rome) and Jane Hupe (ICAO) |
| Advancing Sustainable Aviation: developments in aviation sustainability from the academic perspective | Suzanne Kearns (Waterloo Institute for Sustainable Aeronautics, University of Waterloo,
Canada), David Zingg (Centre for Research in Sustainable Aviation, University of Toronto)
and Tim Ryley (Griffith Aviation, School of Engineering & Built Environment) |
CHAPTER TWO: CLIMATE CHANGE MITIGATION — OVERVIEW
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| Advancing Global Aviation Climate Mitigation: Setting the Scene for LTAG Implementation | ICAO Secretariat |
| Introduction to the LTAG Monitoring and Reporting (LMR) Methodology | Marcela Anselmi (Brazil) and Michael Lunter (Netherlands) |
| Path to net zero: Turning ambition into action | Felix Eggert (ATAG) |
| Exploring the Contribution of Short-Lived Climate Pollutants (SLCPs) Mitigation to ICAO’s Long-Term Aspirational Goal | Supraja Kumar and Jayant Mukhopadhaya (ICCT) |
| To Achieve LTAG: Ways to Address and Minimize Residual CO2 Emissions | Rabab Mehnaz and Alejandro Block (IATA) |
| Message from Airbus’ Chief Sustainability Officer (CSO) | Julie Kitcher (Airbus) |
| Empowering Policy and Progress: How Boeing’s Cascade Tool Maps Paths to Aviation’s Future | Boeing
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| How to Integrate non-CO2 Effects in Monitoring, Reporting and Verification Mechanisms – an Insight into Technical Options | Florian Linke and Malte Niklass (DLR German Aerospace Center) |
| Institute for Sustainable Aviation: Three Years of Interdisciplinary Research and Training Excellence | Prof. Laurent Joly (ISAE-SUPAERO) |
CHAPTER THREE: CLIMATE CHANGE MITIGATION — AIRCRAFT
TECHNOLOGIES
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| Technology Solutions to Support ICAO’s Long-Term Global Aspirational Goal (LTAG) | ICAO Secretariat |
| Emissions Technical: Progress of CAEP/13 Working Group 3 | Bethan Owen (UK) and ICAO Secretariat |
| Enabling a zero-carbon future for aviation | Alejandro Block (IATA) and Jennifer Desharnais (ACI) |
| Taking Flight Towards Greater Sustainability with CFM International’s RISE Initiative | Valérie Guénon (Safran) |
| How hybrid-electric technology can facilitate better adoption of sustainable aviation fuel | Stéphane Viala (Ascendance) |
| Beyond Aero: A Startup Revolutionizing Aviation Towards a Hydrogen-Electric Future | Jacques-Alexis Verrecchia (Beyond Aero) |
| Addressing Non-CO2 Emissions — the way towards clean and competitive aviation | Christiane Voigt (DLR), Adél Schröpfer (DLR), Anthony Brown (NRC), Greg Smallwood (NRC),
Leonid Nichman (NRC), Sean Yun (NRC), Pervez Canteenwalla (NRC), June Sun (NRC), Philippe
Novelli (ONERA), and Kaouthar Benameur (ONERA) |
CHAPTER FOUR: CLIMATE CHANGE MITIGATION — OPERATIONS
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| Overview of operational improvements and ICAO’s path to net-zero carbon emissions by 2050 | ICAO Secretariat |
| ICAO’s Progress on Sustainable Airports and Flight Operations – CAEP Working Group 2 Report | David Brain (EUROCONTROL) and Ted McDonald (Transport Canada) |
| Vertical Flight Efficiency En-Route (VFE-ER) | David Brain (EUROCONTROL) and Francisco Hoyas (EUROCONTROL) |
| The role of the pilot in climate change mitigation through operations | Robert Brons (IFALPA) |
| Operational Opportunities to Reduce Climate Effects of Contrails | Asuka Boehm (CANSO) and Robert Brons (IFALPA) |
| Operational opportunities and challenges for addressing air transport’s non-CO2 environmental impacts | IATA |
| Leveraging environment footprint reduction in operations, including non-CO2 | Charles Renard (Airbus) |
CHAPTER FIVE: CLIMATE CHANGE MITIGATION — AVIATION CLEANER
ENERGIES |
| ICAO Global Framework for SAF, LCAF and other aviation cleaner energies | ICAO Secretariat |
| Policy and Planning, and Regulatory Framework Foundations for Aviation Cleaner Energies | ICAO Secretariat |
| Advancing CORSIA-Eligible Fuels (CEFs) | ICAO Secretariat and Daniel Brousse Rivas (EASA) |
| Emerging Technologies and processes for an increased SAF production | Dan Bergels, Alyson Fick and Mark Rumizen (ASTM International) |
| The Increasing Importance and Potential of Electricity for CORSIA Eligible Fuel Production | Daniel Brousse Rivas (EASA), Boris Stolz (BAZL), Matteo Prussi (Politecnico di Torino),
Robert Malina (Hasselt University), Florian Allroggen (MIT) |
| Japan’s Efforts to Introduce SAF | Osamu Nakamura (JCAB), Yuki Nishimura (JGC), Miya Tobioka (ANA), Hideki Ochiai (JAL),
Yuhei Sato (COSMO Oil) and Mika Kasagawa (ENEOS) |
| Fueling the future: Brazil’s strategy on SAF and aviation energy transition | Marcela Anselmi and Ricardo Dupont (ANAC, Brazil) |
| A quiver of policy tools needed to hit sustainable aviation fuel targets | Ilkka Hannula and Jeremy Moorhouse (IEA) |
| Global Landscape of SAF Accounting Methodology and Registry Systems | Azim Norazmi and Michael Schneider (IATA) |
| Bridging the Sustainable Aviation Fuel (SAF) Premium | Isabel Galiana (Future Energy Global) |
| Impact of Hydrogen in Aviation | Tina Jurkat-Witschas, Christiane Voigt, Simon Unterstraßer, Ulrike Burkhardt and Markus Rapp
(DLR) |
| Aviation Impact Accelerator (AIA) | Professor Rob Miller (University of Cambridge) |
CHAPTER SIX: CARBON OFFSETTING AND REDUCTION SCHEME FOR
INTERNATIONAL AVIATION (CORSIA)
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| Introduction to CORSIA | ICAO Secretariat |
| Overview of the CAEP/13 updates concerning CORSIA | WG4 co-Rapporteurs, Kerri Henry (Canada) and Joonas Laukia (EU EASA) |
| The Role of ICAO’s CORSIA Central Registry (CCR) in CORSIA Implementation | ICAO Secretariat |
| CORSIA Implementation in the Dominican Republic | Judit De Leon, Action Plan Focal Point; Luis Ramirez, CORSIA Focal Point |
| CORSIA Emissions Units: Key updates, the role of the Technical Advisory Body and Future Direction | Grégoire Baribeau (Canada) and Rachid Rahim (Qatar) |
| Article 6 of the Paris Agreement: Supporting International Climate Cooperation and CORSIA | Phillip Eyre, Seoyoung Lim, Iana Messetchkova and Perumal Arumugam (UNFCCC Secretariat) |
| A call to action: Ensuring CORSIA’s robust implementation | Yue Huang and Abijith Amberi Premanand (International Air Transport Association, IATA) |
| CORSIA Eligible Fuels Certification: Processes and Progress | Juan Ignacio Hermira Herranz (SENASA, Spain) |
| Certification of CORSIA eligible fuels | Nael Aoun (ClassNK) |
| Bringing CORSIA to a new level while shaping global carbon markets and fostering international cooperation | Pedro Piris-Cabezas (Environmental Defense Fund – EDF) |
| The 2025 CORSIA periodic review | ICAO Secretariat |
| A recap of ICAO's Journey towards 2016 CORSIA Agreement | ICAO Secretariat |
CHAPTER SEVEN: STATE ACTION PLANS
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| Advancing Sustainable Aviation: The ICAO State Action Plan initiative | ICAO Secretariat |
| Chile’s Actions to Enable Sustainable Aviation | Martín Mackenna Rueda (Ministry of Transport and Telecommunications, Chile) |
| Oman Vision 2040: A National Blueprint for Sustainable environment and Clean Energy | Samah Al. Shibli (Oman Civil Aviation Authority) |
| Operational Benefits of the Implementation of Free Route Airspace in Kano Flight Information Region (Nigeria) | Oyetoun Foluwake Adegbesan (Nigeria Civil Aviation Authority), and Samson O. Akpore (Nigerian
Airspace Management Agency) |
| Assessing the Clarity of Net-Zero State Action Plans | Supraja Kumar (ICCT) |
CHAPTER EIGHT: CAPACITY BUILDING AND IMPLEMENTATION SUPPORT
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| ACT-SAF and ACT-CORSIA Programmes overview & recent developments | ICAO Secretariat |
| Regional Perspectives on Progress from ICAO Regional Officers towards the Long-Term Global Aspirational Goal (LTAG) | Peter Dunda (APAC Region), Chinga Mazhetese (ESAF Region) Blandine Ferrier (EUR/NAT and
WACAF Regions), Radhouan Aissaoui (MID Region), Luis R. Sanchez (NACC Region), Jorge Armoa
(SAM Region) |
| Greening Aviation through Global Aviation Partnerships – the contribution of the European Union | European Union (EU) |
| Kenya’s Role in the Global Effort on Aviation Environmental Protection and Sustainable Aviation Fuels (SAF) | Francis Mwangi (Kenya Civil Aviation Authority - KCAA) |
| Lessons Learned from Capacity Building Sessions in the Caribbean | Ashan Edoo (Transport Canada) |
| Participation of the Dominican Republic in the EASA Assistance Projects with the European Union Funding | Judit De Leon (IDAC) and Eleonora Italia (EASA) |
| Ramping up roadmaps under ICAO’s ACT-SAF initiative: experience from Boeing and partners | Boeing |
CHAPTER NINE: CLIMATE FINANCING
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| Mobilizing Financing for a Net-Zero Aviation Sector | ICAO Secretariat |
| The ICAO Finvest Hub | ICAO Secretariat |
| Partnering for Aviation Decarbonisation: The ICAO-IRENA Approach | International Renewable Energy Agency (IRENA) |
| Combining and sequencing public-private levers can increase the likelihood of SAF project financing | Giorgio Parolini (World Economic Forum) |
| Innovative financing structure for large scale SAF Projects | Christoph Michel (GIZ PtX Hub) |
| The RLCF Alliance: enabling SAF development in the EU and beyond | Alexis Chausteur (European Commission) and RLCF Alliance Steering Group (European
Commission, Fincantieri, FuelsEurope, Hydrogen Europe, and Safran) |
| From Innovation to Impact: Building Tomorrow’s Aerospace Sector | Paul Adams (Aerospace Technology Institute – ATI, UK) |
CHAPTER TEN: AIRCRAFT NOISE
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| Advancing Global Standards for Aircraft Noise: Developments from CAEP/13 and Outlook to CAEP/14 | ICAO Secretariat |
| Towards future noise standards for Emerging Technology Aircraft (ETA) | Franck Cléro (DGAC-France) and David Josephson (Joby Aviation) |
| Noise Monitoring Systems Good Practices | Athanasios Synodinos (ICCAIA) and Oleksandr Zaporozhets (Ukraine) |
| Revisiting Noise Abatement Departure Procedures (NADP) Application | Francesco Hoyas (EUROCONTROL) |
| Aircraft Noise: A Balanced Path Toward Community and Operational Sustainability | Jennifer Desharnais (ACI), Colette Zraibi (IATA), Jonathan Bagg (NAV CANADA) |
CHAPTER ELEVEN: LOCAL AIR QUALITY
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| Addressing Local Air Quality: Latest Progress by ICAO | ICAO Secretariat |
| ICAO Airport Air Quality Manual Update (Doc 9889) | Emanuel Fleuti (Zurich Airport) |
| Local Air Quality and Sustainable Aviation Fuels (SAF) | Theo Rindlisbacher (Swiss Federal Office of Civil Aviation) and Richard C. Miake Lye (Aerodyne
Research) |
| Standards and Advances in Airport Air Quality Modelling | Ulf Janicke (Janicke Consulting) |
| Jointly regulating jet fuel aromatic and sulfur content: A near-term strategy for public health and climate benefits | Pedro Piris-Cabezas (Environmental Defense Fund – EDF & ICSA) |
CHAPTER TWELVE: GREEN AIRPORTS
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| Green Airports: At the Frontier of Aviation’s Cleaner Energy Transition | ICAO Secretariat |
| Advancements in the Eco-Airport Toolkit e-Collection | Jennifer Desharnais (ACI World) |
| Holistic Airport Decarbonisation from Ground to Air | OLGA Project |
| Green Airports based on the good practices implemented in Dominican Republic international airports | Judit De Leon (IDAC) and Carolina Joaquín (Cibao International Airport) |
| Advancing Decarbonization through Energy Efficiency at IGA Istanbul Airport | Bilal Yildiz, Orhan Gül, Dr. Tunc Cavcav, and Irem Bilensoy (IGA Istanbul Airport) |
CHAPTER THIRTEEN: CLIMATE ADAPTATION & RESILIENCE
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| Taking Flight Towards Climate Resilience | ICAO Secretariat |
| Climate Adaptation Synthesis Update | Rachel Burgidge (Eurocontrol) |
| United Nations’ WMO initiatives | Greg Brock, Stéphanie Wigniolle, Cyrille Honoré, and Sara Basart (WMO) |
| Climate Change Adaptation Action in Europe | Rachel Burbidge (EUROCONTROL), Andreas Busa (EASA), and Alexandre de Joybert (ACI Europe)) |
| Understanding Airport Resilience & Adaptation: Insights from Airport Managers | Kiran Gowda. K.S and Empati Uday Kumar (CDRI), Vivek Sindhamani and Asmeeta Das Sharma
(NACO, a company of Haskoning) |
| Preparing airports for a changing climate | Daniel Bannister, Lucy Stanbrough, Christopher Au, and Tania Roca (WTW) |
| The role of co-design in assessing climate risk: case of Bologna Airport | Carmela De Vivo and Paola Mercogliano (Foundation – Euro-Mediterranean Center on Climate
Change - CMCC) |
CHAPTER FOURTEEN: TOWARDS A CIRCULAR ECONOMY
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| Advancing Circular Economy Practices in Aviation | ICAO Secretariat |
| Transitioning towards a circular economy | International Aerospace Environmental Group (IAEG) |
| Pioneering Circularity in Airport Operations: Schiphol’s Path to Zero-Waste | Sara Solis (Royal Schiphol Group) |
CHAPTER FIFTEEN: BIODIVERSITY
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| Biodiversity and Nature-Based Solutions: an emerging topic for the aviation sector | ICAO Secretariat |
| Making peace with nature is a flight humankind cannot miss | Astrid Schomaker (Convention on Biological Diversity (CBD)) |
| Integrating Biodiversity and Nature-Based Solutions in Airport Operations | Jennifer Desharnais (ACI) |
| Enhancing biodiversity by carbon sequestration through Nature-Based Solutions — Abidjan Airport Côte d’Ivoire | Aly Ouattara (AERIA), Géraud de Saint-Seine (Soil.is - EGIS),
Gaoussou Cisse (INP-HB/ GEESOIL) |
| Harmonising Aviation Growth and Marine Biodiversity: HKIA’s Innovative Approach | Martin Putnam and Anita Wong (Hong Kong International Airport – HKIA) |
CHAPTER SIXTEEN: MULTISTAKEHOLDER COOPERATION
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| Advancements in Multistakeholder Cooperation Over the Last Triennium | ICAO Secretariat |
| Working Together for Net-Zero by 2050: UNFCCC and ICAO’s Joint Efforts | Ryo Hamaguchi, Woojoo Kim, Bernd Hackmann and Stelios Pesmajoglou (UNFCCC) |
| ICAO Carbon Emissions Calculator (ICEC): a reference tool for estimating carbon emissions | ICAO Secretariat |
| The Role of Aviation in the UN Decade of Sustainable Transport 2026–2035 | Riina Jussila (UN-DESA) |
| Partnering to Bolster Impact: the Sustainable Mobility for All (SuM4All) initiative experience | Shokraneh Minovi (World Bank & SuM4All) |
| Message from the Secretary-General of the International Transport Forum (ITF) | Young Tae Kim (IFT) |
| Message from the Executive Secretary of the Convention on Biological Diversity (CBD) | Astrid Schoma |
