Ambitious first day for ICAO Aviation Climate Week

Speakers focus on solutions to air transport’s emissions mitigation 

With ICAO Aviation Climate Week officially opened today, proceedings focussed sharply on one key question: how can aviation deliver on its ambition to reach net-zero emissions by 2050, and what must change to get there?  

The importance of cross-sector collaboration was emphasized as one of the critical drivers for accelerating implementation of climate mitigation and resilience efforts, and in contributing to the UN Sustainable Development Goals (SDGs).

As evidence of the momentum, the speakers pointed to the growth in Sustainable Aviation Fuels (SAF) production, underpinned by the globally harmonized framework under ICAO. Others referenced the development of new data-sharing platforms, scenario analysis, and multi-partner research initiatives as evidence that the sector is capable of coordinated action.

The significant influence of non-CO₂ emissions was also recognized, with participants noting that they could account for as much as half of aviation’s net warming effect. New operational trials showing that rerouting flights to avoid regions of persistent contrail formation can sharply cut warming were highlighted as the kind of practical, data-informed step aviation needs.

Technological innovation and operational change are also required. Operational improvements were also recognized as a practical and immediate pathway, including through air traffic management modernization, real-time trajectory planning, and upgraded ground handling protocols.

Many acknowledged the promise of new aircraft technologies, like hydrogen propulsion, and were quick to point out that an aggressive rollout of advanced designs would be needed to deliver the reductions required to reach net-zero carbon emissions.

Panelists observed that regulatory and certification processes need to be in sync with the pace of technological and operational change, including the evolution of new standards. ICAO was recognized for its ongoing leadership role in convening stakeholders and harmonizing standards, with several participants calling for further strengthening of international frameworks to minimize fragmentation and support coordinated action.

Climate action also means climate adaptation 

Discussions at the session made clear that a number of barriers stand in the way of a more robust aviation adaptation response.  

Recent extreme weather events have already surpassed earlier projections, directly affecting airport operations and business continuity in ways that were once considered unlikely so soon. Even facilities built to high engineering standards now face new levels of stress from climate hazards.

Survey results presented to the session revealed important findings: while the majority acknowledged the growing threat from changing weather patterns, more frequent storms, and disruptions to aviation infrastructure, only a small proportion of aviation stakeholders are moving from risk assessment to actual adaptation strategies.

Access to financing, particularly in developing regions, was identified as a top concern. Many airports must cope with limited resources and rising costs just as the challenges grow more complex. In addition, a lack of integration between national and local planning efforts, as well as limited stakeholder involvement, undermines the effectiveness of adaptation strategies.

Many participants noted an ongoing shortage of location-specific climate data and modeling, which leaves some airports ill-equipped to conduct meaningful risk assessments. Within the sector, only a few locations have managed a cycle of regular review and improvement, keeping adaptation efforts current with the evolving climate science.  

High levels of awareness and increasing risk exposure are creating momentum for investment and innovation. There is growing interest in developing tailored solutions, with lessons emerging from a variety of adaptation efforts. Collaborative partnerships, especially with weather and research organizations, are helping to close the data gap and support scenario planning.

The session also highlighted the value of integrating adaptation measures into broader development and investment frameworks. By treating climate resilience as part of a long-term business strategy, airports can safeguard operations, enhance safety, and protect economic value.  

ICAO Climate Aviation Week (Day 1) - 2 June 2026