The Hamburg Sustainability Conference (HSC) 2026 convened around 1,600 participants from 112 countries at a moment of profound disruption and redistribution of power. The HSC confirmed sustainability as the organizing framework linking peace and stability, economic
resilience and competitiveness, planetary boundaries and international cooperation. The rules-based international order is under pressure, fiscal space is shrinking and conflicts are multiplying, while climate change, biodiversity loss and resource depletion are compounding
these pressures on economies and societies already stretched thin. Yet the world has never possessed greater technological capabilities, financial wealth and scientific knowledge. What matters now is how we use these resources to deliver shared prosperity and resilience.
The discussions at HSC 2026 can be summarized along three narrative arcs. The first asks why cooperation remains essential in a more multipolar world. Legitimacy depends on changing the terms of North–South relations, broadening representation and building a cooperative multipolar order in which a wider group of actors can shape and defend common rules. The launch of the South–North Commission on Development offers a structured process for rethinking international cooperation toward fairer partnerships and a sustainability Agenda beyond 2030. The second narrative arc examines what needs to change. Sustainability transformation pays
off economically, but only where investment can flow, risks are shared and governance is predictable. Nature and human capital are systematically undervalued. The bottleneck is the institutional and financing structures needed to unlock them at scale. The third narrative arc addresses how cooperation can deliver. It shows that partnerships accelerate sustainable development when they move from one-off initiatives to systems that mobilize finance, create markets and build local capabilities. Scaling Capital for Sustainable Development (SCALED), Innovative Capital Mobilization in Africa (ICAMA), critical-mineral and hydrogen partnerships, and urban examples from Mombasa and eThekwini show how tangible forms of cooperation can turn commitments into sustainable investment, deeper value chains and locally owned action. This shift is especially visible in Africa, where partnerships are increasingly framed around opportunity, value creation and agency. The road ahead runs through the Triple COP+ year, the G20 under UK chairmanship, and the SDG Summit in September 2027. HSC 2026 demonstrated that navigating the new - disruptive - normal is possible. The task now is to prove it at scale. […]
« Carry trade »… C'est obscur. C'est névralgique. On sait déjà, entre « private credit » et krach IA, dans quel état est la finance. On ne sait pas si ce qui est en train de se passer sur les taux d'intérêt souverain, sur le front du change yen / dollar notamment, entre dans la catégorie des explosifs ou dans celle des détonateurs — peut-être bien un peu des deux.
- La pompe à phynance / États-Unis, Monnaie, Crise financièreClimate-induced planned relocation is becoming an unavoidable policy issue for some highly exposed communities. Although relocation should remain a last resort after other realistic options for adaptation in place have been assessed, ensuring that the money is available when needed to support relocation is critical. The challenge is that funding is insufficient, drawn from diverse sources and often arrives too late and in fragmented forms: for example, one project for housing, another for infrastructure, and little predictable support for consultation, land negotiations, safeguards, livelihoods, host communities or long-term maintenance. The financing problem is therefore not only the scale of the costs, but the difficulty of organising money over time and across institutions and safeguards. This can leave governments reacting after crises rather than planning before risks become unmanageable.
Sovereign trust funds offer one practical way to address this gap. They do not create finance by themselves, but they can provide a country-owned platform for receiving, sequencing and reporting domestic revenue, bilateral support, multilateral development bank (MDB) finance, climate funds, disaster risk finance, and loss and damage resources. They present an alternative to predominantly loan- and grant-based financing for planned relocation. Fiji’s Climate Relocation of
Communities Trust Fund shows both the promise and limits of this approach: It provides a legal and institutional basis for relocation finance within government and links international funding to procedures, but it still requires capitalisation, administrative capacity and long-term technical support. The model presents an opportunity to support sovereign, rights-based financing systems rather than relying solely on donor-funded, often piecemeal relocation projects. It can also make funding available at the appropriate time and without undue time pressure.
Key policy messages:
• Finance planned relocation before a crisis, especially assessment, consent, land, safeguards and project preparation.
• Treat relocation as a long-term investment in the collective good, rather than solely as a construction or emergency response measure.
• Support sovereign trust funds where they are legally mandated at the national level, budget-linked, transparent and capitalised.
• Use finance to uphold quality and rights, including community-led processes, support for host communities and support for long-term livelihoods.
The AU–EU partnership should embrace the plurality within both unions, make interests transparent, and enable pragmatic cooperation between coalitions of willing countries, helping to bring proclaimed ambitions closer to actual practice, explain Benedikt Erforth and Lena Gutheil.