Sustainable Aviation Fuels (SAF), Lower Carbon Aviation Fuels (LCAF), and other aviation cleaner energies have been given centre stage at the 2026 Aviation Climate Week held by the International Civil Aviation Organisation (ICAO). The discussions have highlighted the positive environmental impacts and potential for flexibility of using the these types of fuel, while addressing the financial and logistical difficulties of widely implementing them in the aviation sector.
ICAO Aviation Climate Week 2026
The ICAO Aviation Climate Week 2026 aims to drive environmental sustainability in aviation and help strengthen collective discussion and action across all environmental areas, with the target of reaching net-zero by 2050. The event approaches this by providing a platform dedicated to showcasing advancements in clean energies and technologies, facilitating the exchanging of ideas, recent science and academic research, and promoting the evaluation of what is already successful and where potential lies for improvement and innovation in aviation sustainability.
The three-day event is being held from June 2 to June 4 2026, at the ICAO Headquarters, Montréal, Canada, and intends to build upon the productive discussion and impetus that was introduced at the initial edition of the event launched in 2025.
Dialogue so far at ICAO Aviation Climate Week have centred around the theme One Global Path: Advancing Net-Zero Aviation. The second day of the in depth discussions taking place at the event highlighted the rapid adaptations taking place to drive the upscaling of cleaner aviation energies such as Sustainable Aviation Fuels (SAF) and Lower Carbon Aviation Fuels (LCAF), while also examining the challenges in attaining the necessary target levels of production and deployment.
What Are SAF and LCAF?
Sustainable Aviation Fuels (SAF), Lower Carbon Aviation Fuels (LCAF) are key components in the aviation sector’s attempts to decarbonise the industry. They offer the potential to reduce aviation Greenhouse Gas (GHG) emissions without requiring major changes to the way modern aircraft are operated. SAFs are derived from renewable or waste resources – including biomass and feedstock – and aim to deliver at minimum 10% lifecycle GHG savings compared to traditional fossil fuels. Lifecycle GHG emissions represent the total greenhouse gases released throughout the entire lifespan of a product, service, or energy system, from raw material extraction to disposal, and reducing these is a key step in the aviation industry’s decarbonisation efforts.
Similarly, LCAF’s also aim to reach 10% lifecycle GHG savings, but are still fossil-based fuels that adhere to certain criteria. These fuels have the potential to address the challenge of up-scaling production and usage of sustainable fuels across the sector by acting as an immediate transition fuel for aircraft, while SAF’s are developed further in refineries. With this security, greener aviation projects can receive greater investment.
Discussing Sustainability Logistics
On day two of IACO’s Aviation Climate Week 2026, panellists examined a range of positive steps and drawbacks associated with the development and wider implementation of SAF and LCAF in accordance with ICAO’s technology-neutral approach. They reviewed how regulatory frameworks active in major markets are already contributing to de-risking investments in, and increased production and accelerated deployment of sustainable aviation fuels.
According to the IACO, panellists addressed the significant financing challenges in augmenting SAF to the required levels, which could require up to £2.3 trillion by 2050. The ICAO Finvest Hub initiative, which intends to connect projects with funds and reduce development risk, was reportedly welcomed as a potential solution, and strong partnerships throughout the supply chain were advocated for.
Further discussions we had regarding financial and supply challenges were had at the event. Specifically, the high price of SAF for many airlines, compounded by mandates alone not generating sufficient demand at viable price points, was highlighted as a significant issue. Additionally, obstacles ranging from feedstock uncertainty to the difficulty of securing finance at scale in developing markets were outlined and debated.
The dialogue was not only focused on the challenges associated with such a large scale operation, as speakers at the event underlined many promising developments. For example, SAF aggregators were spotlighted for exploring long-term contracts to share risk, while local barriers are in the process of being resolved by development banks through direct engagement. Moreover, the shift toward performance-based policy aims to support greater innovation and flexibility in the wider scheme.
Moving Forwards with Sustainability
The panellists at the event highlighted that meeting the discussed challenges would require more coordinated and flexible ICAO governance. Emphasis was put on the need for financial risk and reward being shared across the value chain, with mechanisms to recycle compliance revenues and increase overall affordability.
ICAO reported that the discussions were concluded with an acknowledgement that ongoing dialogue, stakeholder alignment, airline cooperation, and broadly effective partnerships underpin successful SAF projects. This collaborative approach is increasingly supported by both voluntary and compliance carbon markets, all of which are additionally directing new resources toward greener aviation projects. With speakers focusing on both hitherto successes and potential solutions, the discussions ended praising current efforts while optimistically calling for policy frameworks that anchor long-term investments while adapting to change.
What do you think about SAF and LCAF implementation? Let us know in the comments.
