I’m heading to the Hamburg Sustainability Conference 2026 — and I’m not going there to nod along.
Hamburg, 29 June 2026. Around 1,600 participants from 115 countries are descending on the Hanseatic city this weekend for the third Hamburg Sustainability Conference. German Federal President Frank-Walter Steinmeier will open proceedings, flanked by 22 ministers, 13 heads of international organisations, and more than 280 C-suite executives from the private sector. The theme is “The Power of Cooperation: Driving Progress Together.” Grand stuff. But grand themes without hard answers are just expensive networking.
I’ll be covering HSC26 for weitzenegger.de and 2030Hamburg.de. Four questions are going to drive every session I walk into, every panel I sit through, and every corridor conversation I manage to have. Here they are unvarnished.
Can Economies Actually Survive Disruption?
The first thematic pillar of HSC26 is Resilient Economies, Technology and the Future of Our Planet. Resilience is one of those words that sounds robust right up until you ask what it actually means in practice. The UNDP Curtain Raiser prepared for this conference surveyed respondents across 15 countries, and accelerating the energy transition came out as a top priority. Fine. But which economies are genuinely restructuring, and which ones are buying time with green-labelled debt? I want the hard numbers. I want the stress tests. If a finance minister or a development bank president cannot tell me what their resilience plan looks like when the next shock hits, the word deserves to be retired from the vocabulary altogether.
The opening panel on “Investing in Transformation” will feature Masato Kanda, President of the Asian Development Bank, alongside Federal Development Minister Reem Alabali Radovan and Mo Ibrahim of the Mo Ibrahim Foundation. That is a panel with real firepower. The question is whether the firepower gets aimed at anything real.
Which Technologies Are Actually Changing the Trajectory?
Innovation panels at sustainability conferences have a habit of resembling product launches with better catering. SAP CEO Christian Klein will be in the room. Tata Sons’ Group Chief Sustainability Officer Chacko Thomas will be in the room. These are people who run enormous technological operations with global supply chains. I will be asking them directly: what is working at scale, what is still a pilot that gets photographed more than it gets deployed, and what is greenwashing dressed up in API documentation?
The conference will also advance the Hamburg Declaration on Responsible AI for the SDGs, an initiative launched at earlier HSC editions. Responsible AI is an area I take seriously. It is also an area that attracts more declarations than deployments. A new alliance between Hamburg, eThekwini Municipality, and UN-Habitat aims to make Hamburg’s AI-based SDG reporting tool available as an open-source solution for other cities. That is the kind of concrete, replicable initiative worth scrutinising closely. Open-source promises made in Hamburg need to survive contact with municipal IT departments in Durban.
How Much Risk Are We Willing to Ignore?
The second thematic pillar is Risk, Uncertainty and Conflict. This is the one I am most interested in, and the one most likely to produce polished non-answers. Multiple crises and geopolitical tensions have intensified the pressure on development trajectories, as the press release diplomatically puts it. Less diplomatically: planning frameworks at most international organisations still operate as though disruption is the exception rather than the condition. When the next panel tells me their projections run to 2030 or 2035, I will be asking what assumptions sit underneath those numbers, and what happens to the model when those assumptions fail.
UNDP Administrator Alexander De Croo has already signalled the right instinct, stating that “we cannot pledge our way out of this reality, we must invest our way out”. That framing is honest. Holding the conference to that standard across 80 sessions will be the real test.
Is Multilateralism Actually Fixable?
The third pillar is Ensuring the Future of Human Collaboration: Multilateralism and Governance. A special highlight of the second day will be the launch of the North-South Commission on Development, co-chaired by former German Chancellor Olaf Scholz and former Costa Rican President Laura Chinchilla. A new commission is a serious undertaking if it is backed by serious resources and serious mandates. It is also a familiar diplomatic manoeuvre when the appetite for structural reform is limited.
Ngozi Okonjo-Iweala, Director-General of the World Trade Organization, will speak at the commission launch. The WTO has been under existential pressure for years. Having its director-general at the table for a new development commission is either a sign of genuine institutional renewal or a sign that the same institutions are rebranding their cooperation under new letterheads. I intend to find out which.
HSC Chair Achim Steiner put the challenge plainly: “The answer to fragmentation cannot be more fragmentation. In a multipolar century, the imperative is not less cooperation, but better and broader cooperation”. That sentence is correct. Whether the 80-odd sessions and 15-plus new alliances being launched this week give it substance is what my reporting will be about.
Karsten Weitzenegger is covering the Hamburg Sustainability Conference 2026 on 29 and 30 June. HSC Future Economy Day follows on 1 July, and Hamburg Sustainability Week runs from 26 June to 3 July.