From Glasgow to Belém, successive UN climate conferences have exposed the same structural weaknesses: ambitious declarations, uncertain financing and limited accountability. The results of COP30 have largely vindicated criticisms raised in previous years, while the latest UN emissions projections suggest that existing policies remain dangerously inadequate. As Türkiye and Australia prepare to lead COP31 through an unprecedented diplomatic partnership, can international climate negotiations finally shift their focus from promises to measurable results?
From Glasgow to Belém: The Growing Gap between Ambition and Action
The 2015 Paris Agreement was undoubtedly a diplomatic achievement, establishing a global framework for limiting temperature increases to well below 2°C while pursuing efforts to remain within 1.5°C. However, subsequent conferences have repeatedly demonstrated the limitations of translating political consensus into effective climate action.
COP26 in Glasgow reaffirmed ambitious emissions-reduction objectives, while COP27 in Sharm el-Sheikh established a historic loss and damage fund without delivering a decisive breakthrough on fossil fuels. COP28 in Dubai subsequently called for transitioning away from fossil fuels in energy systems, but failed to establish a binding timetable. The fundamental problem remained unchanged: agreements depended on consensus among countries with vastly different economic interests, while their implementation relied largely on national political willingness. The consequences are measurable.
According to the UN Environment Programme’s 2025 Emissions Gap Report, even full implementation of countries’ current climate pledges would put the world on a trajectory towards 2.3–2.5°C of warming this century, while existing policies alone imply approximately 2.8°C. Reaching pathways consistent with 1.5°C would require global annual greenhouse gas emissions to fall by approximately 55 per cent by 2035 compared with 2019 levels. These figures illustrate that the gap between diplomatic ambition and practical implementation remains substantial, despite three decades of negotiations.
COP29 in Baku made this credibility problem particularly visible in climate finance. After difficult negotiations, countries agreed to increase the annual financing goal for developing nations from $100 billion to $300 billion by 2035, alongside a broader ambition to mobilize at least $1.3 trillion annually from public and private sources. Although presented as a breakthrough, the agreement left unresolved questions concerning the sources, accessibility and composition of the promised funding. The UNFCCC’s own assessment acknowledged that substantial work remained.
COP30 in Belém reinforced rather than resolved these concerns. Its final political package called for adaptation finance to be tripled by 2035, yet failed to incorporate a formal roadmap for transitioning away from fossil fuels. The Brazilian presidency subsequently committed to developing such a roadmap outside the negotiated outcome. Despite adopting 56 decisions by consensus, Belém once again demonstrated the central contradiction of the COP system: maintaining universal participation frequently requires weakening the substance of collective commitments. The question is no longer whether governments can produce agreements, but whether a process built around consensus and largely non-punitive implementation can consistently deliver the transformations it promises.
Climate Finance, Carbon Markets and the Changing Balance of Power
The shortcomings of international climate diplomacy are particularly apparent in the financial mechanisms intended to support implementation. The distinction between grants, concessional loans and commercial financing is not merely technical. For heavily indebted developing economies, climate projects financed primarily through additional borrowing may increase financial vulnerability rather than provide sustainable assistance. The Baku-to-Belém Roadmap to $1.3 trillion explicitly recognizes the importance of grants, concessional finance and non-debt-creating instruments, yet recognizing the problem is not equivalent to solving it. Carbon markets reveal similar tensions between institutional progress and environmental credibility.
‘Recognizing the problem is not equivalent to solving it’
COP29 finalized important operational rules under Article 6 of the Paris Agreement, while COP30 advanced implementation requirements and agreed to phase down the Kyoto Protocol’s Clean Development Mechanism by the end of 2026. Nevertheless, concerns persist regarding transparency, additionality and the permanence of claimed emissions reductions. A frequently discussed example involves the Swiss–Thai cooperation project to replace conventional buses with electric vehicles, where civil society organizations questioned whether the emissions reductions could be sufficiently demonstrated as additional to what would otherwise have occurred. Such cases raise a fundamental concern: if carbon credits are issued for reductions that cannot be reliably verified, they risk becoming accounting instruments rather than genuine climate solutions. The UNFCCC’s Article 6 framework provides mechanisms for international cooperation, but their credibility ultimately depends on rigorous methodologies, transparent reporting and effective oversight.
These institutional weaknesses are becoming more consequential as the geopolitical foundations of climate diplomacy shift. COP30 was the first climate summit in decades without an official US federal delegation, reflecting Washington’s withdrawal from multilateral climate leadership. China, meanwhile, has strengthened its diplomatic position alongside its dominance in several clean-technology supply chains, particularly solar panels, batteries and electric vehicles. Yet Beijing continues to rely heavily on coal and maintains that developing countries should retain greater flexibility in pursuing economic growth.
The European Union remains among the strongest advocates of ambitious climate standards, but its influence is constrained by industrial competitiveness concerns, energy costs and the absence of a unified Western negotiating bloc. Consequently, the COP process increasingly reflects competing economic strategies rather than a shared understanding of how the energy transition should proceed. This raises an uncomfortable but necessary question: can international climate governance remain effective when its leading participants increasingly approach climate policy as an instrument of industrial competition, trade policy and energy security? Without addressing these underlying conflicts, even technically sophisticated agreements may prove politically fragile.
COP31 and Beyond: A New Diplomatic Formula or Another Compromise?
The upcoming COP31, scheduled for 9–20 November 2026 in Antalya, provides an opportunity to test whether the institutional framework can adapt to these challenges. Its most distinctive feature is the unprecedented division of responsibilities between Türkiye and Australia. Under the agreement reached in November 2025, Türkiye will host the summit, hold its presidency and lead the Action Agenda, while Australian Climate Change and Energy Minister Chris Bowen will serve as President of Negotiations, exercising exclusive authority over the formal negotiating process in consultation with Türkiye. Australia will also work with Pacific countries to organize a dedicated pre-COP meeting and highlight the financing needs of vulnerable island states.
The arrangement is more than a diplomatic curiosity: it introduces a new leadership model into a system frequently criticized for procedural rigidity. Türkiye’s strategic position between Europe, Asia and the Middle East, combined with Australia’s relationships across the Pacific, could facilitate dialogue between countries with sharply different development priorities. Yet both countries retain substantial fossil-fuel interests, making their partnership a practical test of whether climate ambition can coexist with economic and energy-security realities.
Whether this model produces meaningful results will depend less on its novelty than on the outcomes it delivers. COP31 should be judged against concrete criteria: measurable progress towards existing financing commitments, more transparent carbon-market accounting, and credible implementation arrangements for previously agreed energy-transition objectives. The contrast between Australia’s advocacy for climate-vulnerable Pacific states and its own fossil-fuel export interests will be particularly revealing. Can the Turkish–Australian partnership translate competing priorities into workable compromises without repeating the familiar pattern of diluted commitments? Looking further ahead, COP32 in Addis Ababa could strengthen African countries’ influence over adaptation finance, energy access and climate-related development costs. However, it cannot independently resolve the geopolitical disagreements, investment constraints or weak enforcement mechanisms that have shaped previous conferences.
‘COP31 offers an opportunity to demonstrate that institutional innovation can improve delivery’
The COP process should not be dismissed entirely. The Paris Agreement, international carbon-market rules and adaptation frameworks represent genuine achievements that would have been difficult to establish without multilateral negotiations. Nevertheless, diplomatic continuity must not become a substitute for effectiveness. After 30 climate conferences, the credibility of international climate governance can no longer rest primarily on ambitious targets and carefully negotiated declarations. COP31 offers an opportunity to demonstrate that institutional innovation can improve delivery, but the decisive measure of success remains unchanged: whether governments can finance, verify and implement what they have already promised.
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