Climate Week at ICAO: Discord in the Skies

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An Embraer E190-E2 passenger aircraft of Singaproe's budget airline Scoot receives water cannon greetings at Singapore's Changi Airport in Singapore on April 15, 2024. (Photo by Then Chih Wey/Xinhua)

Tackling climate change is a shared mission for mankind … Let us join hands to contribute to the establishment of an equitable and effective global mechanism on climate change, work for global sustainable development at a high level and bring about new international relations featuring win-win cooperation.” ~ Chinese President Xi Jinping

Aviation leaders will meet again at the 2025 ICAO Aviation Climate Week, from 2 to 4 June 2025 at the International Civil Aviation Organization, under the theme: “Skyward Action: Realizing Aviation’s Sustainable Future.”  This is not to say these events are not important or that they are lacking in enthusiasm and purpose.  It’s just that whenever such events occur, particularly in the context of aviation and climate change under the auspices of ICAO, one has to inquire into the teleological significance of the event.  In other words, what is the meaning and purpose of such a gathering, and what will be the outcome of the deliberations therein?

The forthcoming three-day ICAO Aviation Climate Week, to be held at ICAO Headquarters, manifests yet another significant attempt by the Organization to unify its Member States and industry stakeholders around a pressing and inescapable reality: climate change and its profound impact on international civil aviation. This initiative emerges not in isolation but as part of a continuous institutional effort to translate aspirational goals, such as the Long-Term Aspirational Goal (LTAG) of net-zero carbon emissions by 2050, into tangible policy instruments, actionable strategies, and cooperative mechanisms.

It must be emphasized that the value of this event, ostensibly couched in technical discussions, programmatic evaluations, and exhibition opportunities, lies not merely in the sharing of information but in its potential to deepen epistemic engagement among stakeholders. The convergence of governmental, intergovernmental, and industry actors creates an agora for epistemological reinforcement of sustainability in civil aviation. This is especially critical given the evolving nature of international aviation governance, which is now increasingly beholden not only to safety and security concerns but to environmental imperatives.

Disparate Approaches

In embarking upon an assessment of how climate change is viewed across various geopolitical regions—and in particular, how aviation is understood within the context of this existential threat—it becomes necessary to situate the discussion not only within the disparate economic realities and ideological foundations of various regions, but also against the backdrop of historically rooted doctrines of responsibility, sovereignty, and technological ambition. The global discourse on climate change is no longer a matter of scientific consensus—indeed, that threshold has long been crossed. What remains contested, and indeed politicized, is the calculus of accountability, capability, and will. Amid this turbulent discourse stands the aviation industry—both commercial and military—as a convenient scapegoat, a strategic enabler, and a reluctant reformist.

The United States

The United States presents a complex yet instructive paradigm. Oscillating between climate ambition and industrial pragmatism, American policy demonstrates a kind of environmental schizophrenia. On the one hand, successive administrations—particularly under Democratic leadership—have pledged adherence to global climate instruments such as the Paris Agreement. On the other hand, the United States continues to subsidize fossil fuel industries and demonstrates a marked reticence in curtailing the growth of its aviation sector, citing economic imperatives and national security interests. This paradox is not accidental. It is rooted in the American doctrine of exceptionalism, which positions the U.S. not merely as a participant in global governance, but as a principal architect of its direction. Aviation, viewed through this lens, is not merely a mode of transport; it is an instrument of economic dominance, military readiness, and technological prowess. The discourse on climate change in the U.S., therefore, bifurcates into two streams: the first, driven by civil society and progressive sectors, which demands accountability and rapid decarbonization of aviation; and the second, driven by industry and security lobbies, which seek incrementalism tempered by innovation promises such as sustainable aviation fuels (SAFs), hydrogen propulsion, and electrification—without an honest reckoning of carbon offsets’ limitations.

Russia

Russia, by contrast, presents an orthogonal viewpoint. Underpinned by a resource-based economy heavily reliant on oil and gas exports, the Russian Federation has historically maintained a posture of skepticism towards global climate agendas. Climate change is often interpreted not as a planetary threat but as a geopolitical instrument wielded by Western powers to curtail Russian economic influence. In this context, aviation is perceived less as a climate liability and more as a symbol of national sovereignty and logistical self-sufficiency, particularly in its vast and sparsely connected hinterlands. While Russia has nominally committed to climate goals, including net-zero by 2060, such commitments are frequently accompanied by caveats and ambiguity. In Russian strategic thinking, the rhetoric of climate mitigation is subordinated to the imperatives of realpolitik. Technological upgrades in aviation—if undertaken—are motivated more by cost-efficiency and military competitiveness than by environmental concern.

China

China’s engagement with climate change is at once pragmatic, ambitious, and opaque. As the world’s largest emitter of greenhouse gases and simultaneously the largest investor in renewable energy, China embodies the contradictions of the Global South’s developmental aspirations and the Global North’s climate expectations. The Chinese Communist Party’s climate discourse is embedded within the broader rubric of ‘ecological civilization,’ a political narrative that seeks to align environmental stewardship with socialist modernization. Within this framework, aviation is a double-edged sword: on one hand, it is essential for connecting the vast Chinese interior with its coastal metropolises and for projecting soft power through initiatives like the Belt and Road Initiative; on the other, it is a sector that invites international scrutiny for its carbon intensity. Beijing’s response has been to invest in domestic aircraft manufacturing, such as the COMAC C919, with the implicit goal of achieving not only aviation sovereignty but also environmental competitiveness. That said, China’s climate commitments—including carbon neutrality by 2060—appear contingent upon technological feasibility rather than regulatory constraint. Aviation is unlikely to be aggressively curtailed; rather, it will be subject to a developmentalist logic that privileges innovation over limitation.

Europe

Europe occupies a distinctive moral and legal position in the climate discourse. As the progenitor of the Emissions Trading Scheme (ETS) and the CORSIA alternative within its regional jurisdiction, the European Union has, more than any other bloc, embedded climate consciousness within its regulatory fabric. The EU views climate change not merely as an environmental issue, but as a juridical obligation. This normative architecture has led to robust measures aimed at internalizing the externalities of aviation emissions, ranging from inclusion in carbon markets to airport slot constraints based on environmental metrics. More significantly, European jurisprudence increasingly recognizes the rights of future generations and the principle of intergenerational equity, giving climate litigants substantial leverage. Nevertheless, Europe’s approach is not without contradictions. The single aviation market remains a cornerstone of EU economic integration, and the post-pandemic recovery strategy is heavily dependent on aviation connectivity. Thus, while Europe positions itself as a climate vanguard, it must navigate the competing imperatives of economic cohesion and environmental stewardship. The doctrine of ‘green growth’ undergirds its aviation policy—a doctrine whose efficacy remains debated among scholars and civil society.

South Asia

In South Asia, the narrative is one of climate vulnerability and developmental urgency. Countries like India, Bangladesh, and Pakistan view climate change through the prism of adaptation and climate justice rather than mitigation. These states argue—with some merit—that they are victims rather than culprits in the global carbon equation. Aviation, though growing, is still a nascent sector in much of South Asia, serving more as a symbol of upward mobility and economic aspiration than as a climate concern. India, for instance, has undertaken modest efforts to green its aviation sector, including mandates on fuel efficiency and airport carbon accreditation. However, the political salience of aviation emissions remains low compared to the more immediate challenges of energy access, water scarcity, and urban pollution. There exists, therefore, a structural disjunction between international expectations and domestic priorities. South Asian states tend to resist binding commitments on aviation emissions in multilateral fora, invoking the principle of Common But Differentiated Responsibilities (CBDR). In such a landscape, aviation is viewed more as a developmental enabler than as an ecological burden.

East Asia

East Asia presents a more differentiated canvas. Japan, South Korea, and Taiwan exhibit high levels of technological sophistication and are among the few countries to have operational roadmaps for carbon-neutral aviation. These nations adopt a technocratic approach to climate change, relying on innovations such as electric aircraft prototypes, fuel cell research, and digital air traffic management systems to offset environmental impact. There exists a cultural premium on efficiency, precision, and discipline—all of which influence their aviation climate strategies. Yet, even within East Asia, policy coherence is not absolute. Japan’s reliance on international carbon offsets and South Korea’s gradualism reveal the enduring tension between ambition and feasibility. Aviation, while central to their export-oriented economies, is increasingly framed within a sustainability narrative, albeit with varying degrees of urgency and enforceability.

The Middle East

The Middle East poses another layer of complexity. With some of the world’s most prolific carriers—Emirates, Qatar Airways, and Etihad—the Gulf States in particular have used aviation as a tool of economic diversification and geopolitical branding. Climate change, though acknowledged, is often refracted through the prism of economic risk rather than planetary duty. The region’s participation in global climate frameworks is strategic rather than normative. For oil-rich states, aviation represents both a post-oil future and a continuation of energy hegemony through kerosene-intensive industries. That said, the Gulf carriers have adopted aggressive environmental branding strategies—investing in newer, more fuel-efficient aircraft and participating in CORSIA—though critics argue that such measures amount to greenwashing in the absence of structural reforms. In non-Gulf Middle Eastern states, where aviation infrastructure is less developed, climate change garners attention primarily through its impact on water security and agricultural viability, with aviation occupying a marginal place in the policy hierarchy.

Australia

Australia offers yet another variation. As both a developed economy and a continent facing severe climate-induced risks, Australia’s climate policy has oscillated between ambition and inertia. The aviation sector, due to the vast distances and low population density, is integral to national connectivity and economic function. Consequently, the political appetite for restrictive aviation measures is low, notwithstanding growing civil society activism. Successive Australian governments have shown limited inclination to impose stringent emissions regulations on airlines, relying instead on voluntary frameworks and industry-led initiatives. However, the private sector, particularly carriers such as Qantas, has taken steps toward decarbonization, including commitments to net-zero emissions and investment in SAFs. Still, the broader national policy landscape remains fragmented, shaped by partisan divides and a powerful mining lobby. In this regard, aviation policy reflects the broader ambivalence of Australia’s climate posture: a tension between global responsibility and domestic expediency.

Africa and South America

Africa and South America, though geographically distant and culturally diverse, share a common narrative of marginalization in the global climate discourse—a narrative shaped by historical inequities, economic dependency, and the enduring asymmetry of global aviation. Their engagement with climate change, and by extension, aviation’s role therein, is informed less by ideological ambition and more by existential necessity. In both continents, the aviation sector is nascent but crucial—a lifeline for remote communities, a vehicle for trade and tourism, and a symbol of integration into the global economy. Yet, these regions have been perennially relegated to the periphery of international regulatory structures, where decisions affecting their futures are often made in absentia.

In Africa, climate change is an omnipresent reality, manifesting in droughts, desertification, and the disintegration of traditional livelihoods. The continent contributes a mere fraction to global aviation emissions, yet it bears a disproportionate share of the climatic consequences. African states, therefore, approach the aviation-climate nexus with cautious pragmatism. There is an acute recognition that imposing burdensome emission reduction measures on their fledgling aviation sectors would stifle development and further entrench inequality. Consequently, the African position in multilateral fora such as ICAO is one of conditional participation—supporting climate measures like CORSIA insofar as they are voluntary, non-punitive, and accompanied by capacity-building and financial assistance. For many African governments, the priority is not emission mitigation per se, but ensuring that global climate actions do not exacerbate their structural vulnerabilities. Aviation is thus embraced not as a threat, but as a tool for resilience and economic emancipation.

South America, for its part, navigates the aviation-climate equation through a similarly nuanced but distinct lens. With vast rainforests acting as carbon sinks and indigenous communities living in harmony with nature, the continent is deeply conscious of environmental stewardship. At the same time, the region has witnessed erratic economic trajectories, political instability, and underinvestment in infrastructure—all of which shape its cautious approach to aviation regulation. Brazil, Argentina, Colombia, and others have adopted moderate positions, often aligning with the Global South’s principle of Common But Differentiated Responsibilities. They advocate for equitable solutions that recognize their sovereign right to develop and expand air connectivity while also contributing, in principle, to global decarbonization goals. Some states have engaged in carbon offset programs and introduced sustainability targets, yet these are typically framed as aspirational rather than obligatory.

In both continents, there is an abiding skepticism toward market-based measures that lack transparency or equity, such as arbitrary emissions caps and unilateral taxes on airline operations. These regions resist being penalized for a crisis they did not create and demand instead a reconfiguration of international legal frameworks to reflect historical responsibility and differentiated capability. As such, Africa and South America call for a recalibration of global aviation governance—one that does not merely dictate terms, but listens, understands, and incorporates the legitimate developmental imperatives of the Global South.

My Take

The divergent approaches outlined above raise a central juridical and philosophical question: can a fragmented, interest-driven assemblage of national policies produce a coherent and effective global response to the aviation-climate nexus? The ICAO’s Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) was intended as a harmonizing instrument. Yet, its non-binding nature, limited scope, and reliance on carbon offsets have led many to question its sufficiency. The principle of CBDR remains contested, particularly between developed and developing nations, and there is scant consensus on how to equitably allocate the carbon burden of aviation. In effect, the global aviation sector is regulated by a mosaic of national, regional, and industry-led initiatives, none of which possess the legal gravitas to enforce meaningful change across borders.

What is required is a reimagination of aviation not merely as a vector of commerce or convenience, but as a moral actor within the planetary commons. This reimagination must be rooted in a jurisprudence that transcends state sovereignty and incorporates notions of intergenerational equity, ecological integrity, and distributive justice. Until then, aviation will remain suspended in a paradox—heralded as the engine of globalization and castigated as its ecological Achilles’ heel. The divergent national postures on climate change and aviation reflect deeper cleavages in global governance—cleavages that cannot be bridged by technology alone. Law must evolve in tandem with conscience. In the absence of a universal legal will, we are left with the uncomfortable truth that aviation’s flight path toward sustainability is still awaiting clearance for takeoff.

The Climate Week event must therefore be assessed within this continuum. It represents an evolution of ICAO’s engagement with climate issues from passive response to active orchestration. Of particular importance is the inclusion of outcomes and recommendations from CAEP/13, which not only legitimizes technical developments but also ensures that policy discussions are anchored in empirical assessment. Similarly, the focus on implementation of CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) and the Global Framework from the Third Conference on Aviation and Alternative Fuels (CAAF/3) reflects ICAO’s recognition that the future of aviation sustainability hinges on more than offsets—it demands structural transformation across fuel systems, airport infrastructure, and operational practices.

Furthermore, the timing of this event—on the cusp of the 42nd Session of the ICAO Assembly—is not merely convenient, but crucial. In the run-up to the Assembly, State representatives will be required to navigate the challenging terrain between national interest and global responsibility. Climate Week enables pre-Assembly calibration of perspectives, allowing States to voice their positions, forge coalitions, and project influence over the emerging normative order in international aviation environmental law. It is an opportunity to test narratives, share data, and build consensus—or at the very least, mutual comprehension—on divisive issues such as differentiated responsibilities, market-based measures, and fuel transitions.

The exhibition component, often dismissed as a mere commercial interlude, should not be underestimated. In ICAO’s context, the showcasing of technologies and solutions operates as a performative legitimization of environmental aspirations. It translates abstract commitments into visible, tangible modalities. More importantly, it invites scrutiny and comparison, which is the very engine of competitive innovation. The opportunity for industry stakeholders to exhibit products aligned with green airports, SAF production, and climate-resilient infrastructure contributes to what may be described as a semiotic economy of sustainability, where meaning is assigned to progress not only through policy declarations but through material demonstrations.

Yet, critical reflection demands we ask whether such events, despite their noble intentions and technical rigor, are sufficient in precipitating the transformational change required. The risks are twofold: first, that Climate Week becomes a performative ritual, an echo chamber for the converted; and second, that it will be used as a public relations exercise by actors more interested in optics than in genuine reform. ICAO must therefore ensure that this event is evaluated not merely by the quality of its presentations, but by the quality of its outcomes. Will Member States depart with enhanced commitments? Will there be new partnerships with measurable objectives? Will the event produce a roadmap that is actionable, time-bound, and accountable?

Therein lies the deeper teleological question: What is the ultimate purpose of Climate Week? If it is to merely “take stock” and “share initiatives,” then it risks repeating the inertia of past engagements. But if it becomes a crucible for redefining aviation’s existential contract with the planet—a contract long overdue for revision—then it could mark a watershed moment in ICAO’s environmental journey.

Ruwantissa Abeyratne

Dr. Abeyratne teaches aerospace law at McGill University. Among the numerous books he has published are Air Navigation Law (2012) and Aviation Safety Law and Regulation (to be published in 2023). He is a former Senior Legal Counsel at the International Civil Aviation Organization.

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