Bonn, Germany – June 8, 2026: As hundreds of national delegates convene at the United Nations Campus for the 10-day Bonn Climate Change Conference, the Alliance of Small Island States (AOSIS) has issued an urgent, unflinching call for global climate ambition, warning that incremental action will push the planet past the irreversible 1.5°C warming threshold. The appeal comes on the heels of a string of catastrophic climate events that have already devastated communities across three continents: destructive cyclones that swept through Pacific island nations, deadly flood events that displaced thousands across parts of Africa, and record-shattering extreme heat waves that crippled infrastructure and disrupted regional economies across Asia. These events, AOSIS Chair Ambassador Ilana Seid emphasizes, are not isolated anomalies—they are the predictable consequences of decades of delayed action on the world’s continued dependence on fossil fuels, the single largest driver of climate instability that world leaders still refuse to meaningfully address.
Current national climate pledges are far insufficient to put the world on a 1.5°C-aligned trajectory, Seid argues. The existing 2030 and updated 2035 Nationally Determined Contributions (NDCs) fall drastically short of what is needed, and without immediate, sweeping revisions, the world faces permanent, irreversible ecological collapse that will wipe out entire small island nations via sea-level rise, erase global biodiversity through prolonged drought, and destroy livelihoods and economies through increasingly frequent catastrophic weather events. If nations fail to fully commit to the implementation roadmap outlined in the first Global Stocktake and phase out fossil fuels to reach net-zero emissions, Seid warns, global leaders are only papering over deep systemic cracks, delaying a collapse that will disrupt the global economy, upend social order and collapse entire ecosystems.
Every year, leading climate scientists, policy specialists and diplomatic negotiators gather in Bonn to craft urgent, actionable solutions to reverse climate damage and protect vulnerable communities. The technical solutions to limit warming already exist, Seid notes: the gap is not a lack of know-how, but a lack of political will to act at the speed and scale the crisis demands. The world’s largest greenhouse gas emitters, she argues, bear direct responsibility for undermining global efforts to avoid crossing the 1.5°C threshold if they continue to prioritize short-term fossil fuel interests over long-term global survival.
At this year’s Bonn conference, AOSIS is demanding a dramatic increase in climate ambition from all nations, with binding outcomes that lock in commitments to keep 1.5°C within reach. Core priorities include delivering on the global agreement to triple renewable energy capacity, double the rate of global energy efficiency improvements, and cut anthropogenic methane emissions drastically. The alliance stresses that an accelerated phase-out of fossil fuels is not just an environmental imperative: renewable energy delivers economically viable, energy-secure and practical solutions that benefit all nations.
Climate finance remains a make-or-break pillar of these efforts, AOSIS emphasizes. The alliance continues to push for full delivery on existing climate finance promises, and urgent reform to remove barriers that block small island developing states (SIDS) from accessing the funding they need to adapt to already unavoidable climate impacts. Of particular concern to AOSIS is the ongoing redirection of public finance away from climate action and sustainable development toward military and security spending. As climate impacts accelerate, public finance is a lifeline that allows vulnerable SIDS to scale up critical adaptation efforts that protect lives and infrastructure; diverting these funds puts millions of vulnerable people at unnecessary risk.
AOSIS is calling on all nations to join it in pulling the world back from the brink of climate catastrophe, with a shared commitment to advance key initiatives that speed up implementation of global climate goals: these include the Belem Mission to 1.5, the Global Implementation Accelerator, the Mitigation Work Programme Review, the UAE Dialogue on Global Stocktake Implementation, the Veredas Dialogue, and the operationalization of the Just Transition Mechanism.
Seid closed by stressing that it is imperative for all nations to approach this work with genuine commitment to reverse current warming trends and build a new era of climate equity, justice and security for all people, regardless of national size or economic power.
Founded in 1990, AOSIS represents the interests of 39 small island and low-lying coastal developing states in all international climate change and sustainable development negotiation processes. As the unified voice for the world’s most climate-vulnerable nations, the group’s mandate goes beyond amplifying marginalized voices: it actively advocates for policy and finance commitments that protect the interests of SIDS, which are disproportionately impacted by climate change despite contributing almost nothing to global emissions. Though AOSIS mirrors the small size of its member states on the global stage, the alliance has consistently punched far above its weight, helping negotiate historic global commitments to cut greenhouse gas emissions and center vulnerable nations in global climate governance.