On 26 September 2025, I took part in a virtual meeting of the UNESCO Futures Literacy and Foresight Chairs, where the new Head of Section (the Management of Social Transformation Programme, MOST), Irakli Khodeli, and the new Head of Unit of Futures Literacy and Foresight, Clare Stark, presented their new priorities and discussed collaboration with the ca 20 (of a total of 36) Chairs represented in the meeting.
In general terms, the MOST programme aims at bringing the knowledge of the Social Sciences and Humanities to policy-making (which fits perfectly with our aims of the UNESCO Chair on Futures Literacy).
Among the planned and ongoing initiatives of UNESCO where FLF Chairs are expected to be involved are the World Futures Day Celebrations on 2 December 2025, a Signals Report on what lies on the horizon, and the conceptual development of a Flagship Report on Foresight for policy making, as well as a new UNESCO Futures Blog.
This meeting, bringing together 40+ UNESCO staff and UNESCO Chairs from around the work, exemplified multilateralism in action, noted Irakli Khodeli in the end.
What if the true monuments of the nuclear age are not vaults, vitrified blocks, or warning markers—but fields of invisible light?
Gamma radiation is insidious. It leaves no ruin, no ash, no wound you can see. You don’t need to touch it. You don’t need to breathe it in. You simply pass by—and it passes into you. No trace is left on the soil. But a trace is left in you. And when the next person passes, they too receive the signal. Yet the source remains—unchanged, unweakened.
Most poisons are spent as they harm. Gamma radiation is not. It accumulates elsewhere, silently, without diminishing its source. A kind of ambient inheritance.
In a recent study, I calculated the gamma radiation field unleashed by humanity’s Uranium-238 (U-238) legacy. The results show that this field is not temporary. It is already present, slow to mature, but geologically assured and radiologically significant, beyond safety thresholds.
Mill tailings scattered across continents emit gamma radiation through uranium’s progeny. This signal will slowly fade over the next half a million years—but it will reach a baseline, unsafe value and will continue indefinitely.
Meanwhile, depleted uranium stockpiles—which emit almost no gamma today—are quietly maturing. From a few thousand years onward, their gamma output will rise steadily, eventually overtaking significantly that of tailings, peaking in two million years, and continuing unabated into geological time.
Most U-238 residues lie close to the surface—mill tailings, depleted uranium (DU) stockpiles, weapons testing sites, contaminated soils from mining and from exploded DU munitions. Even when their radiation does not cause immediate harm, it defines a long-term environmental signal whose meaning we have barely begun to grasp.
This raises questions not only of science, but of ethics, inheritance, and imagination:
What does it mean to leave behind a hazard that grows in potency over time?
How do we warn future beings of a danger concealed in ordinary soil or dust?
Should gamma radiation be seen not only as threat, but also as a marker of human agency?
Nuclear waste lasts a long time. But U-238 isn’t just persistent—it performs. It changes. It regenerates. It returns. And surprisingly, we don’t call it waste. We call it an industrial by-product.
And now we are not just leaving behind a signal—we are leaving a body.
About 4.5 million tonnes of U-238, mostly in oxide form, now reside in uranium tailings, DU, and spent fuel. It is a real, physical legacy—not symbolic, not speculative. This body must be put away—not forgotten, but deliberately placed and traced. Shielded, marked, and remembered.
We can still act. We can treat uranium’s gamma legacy not as an afterthought, but as a defining part of our industrial inheritance. This won’t undo the past—but it may shape how future generations understand what we’ve left them.
We often speak of the nuclear age as bracketed—confined by Cold War dates or the operational lifespan of reactors. But its material consequences are just beginning. Care begins by acknowledging and tending to what endures.
Claudio Pescatore is a member of the UNESCO Chair on Heritage Futures at Linnaeus University
Bebyggelsehistorisk Tidskrift (Nordic Journal of Settlement History and Built Heritage): Urban transformation, heritage processes and social sustainable futures by Ulrika Söderström & Anders Högberg.
Short summary:
In this study, we use three case studies to discuss heritage processes as future-building practices. Through examples from urban regeneration processes in three Swedish cities, we discuss how these processes have contributed to social sustainability. The case studies are the Caroli neighbourhood in Malmö (transformed 1967-1973), the Valnötsträdet neighbourhood in Kalmar (transformed 2008-2018) and the ongoing transformation of Kiruna city. Our findings show that the cultural heritage processes activated in urban regeneration processes do not always promote socially sustainable future-making practices. We conclude that an engagement in different forms of future-making is crucial for heritage processes to contribute to long-term sustainable urban development. We suggest that this requires a way of thinking and acting that includes change and transformation. Our findings are conceptualised in a model that we hope can be used to understand heritage processes as future-making practices in urban transformation projects.
Bebyggelsehistorisk Tidskrift is a Nordic forum for research and debate on the history of the built environment. It is the Nordic region’s leading academic journal on the history of the built environment. The periodical presents the latest research on the history of the built environment, and also provides a forum for discussing the discipline in practice when buildings and heritage environments are being conserved.
Anders Högberg held a keynote lecture at the conference “Kulturarvsforskning i Sverige 2025” – Cultural Heritage Research in Sweden 2025, organised by the Swedish National Heritage Board 20-21 March 2025 in Stockholm. Keynote paper: ‘Cultural heritage research 2025 – some thoughts on where we stand and questions for the future’.
Ulrika Söderström also presented her dissertation at the conference: “Cultural heritage as a resource in socially sustainable urban development: A designed living environment for the future”.
On December 3, 2024, the university management invited to a theme day in Växjö about Linnaeus University and the future. A recording of the event is available here https://play.lnu.se/media/t/0_tb0d3lc4
Cornelius Holtorf participated live in a panel discussion with Marie Hedberg, Pro Dean at the Faculty of Social Sciences and Jörgen Forss, Vice Dean at the Faculty of Technology. Marcelo Milrad from the Faculty of Technology joined via link. The panel was chaired by Kerstin Årmann from the Office of External Relations.
Cornelius Holtorf in a panel discussion at the Future Day, Linnaeus University.
Anders Högberg and Gustav Wollentz from the UNESCO Chair on Heritage Futures were on the 22 November 2024 invited to conduct a workshop on future awareness for the management group at the Department for Nature and Cultural Heritage in the Region Västra Götaland. During the day we met 12 persons, and the workshop lasted for four hours. It took place at the Museum of Natural History in Gothenburg.
The main question we explored was: What will the museums’ societal role/mission look like in 2050? This question was approached through a series of sub-questions, for example with the aim of identifying societal challenges and how these can be proactively met through actions today.
The workshop was based on dialogue and the exchange of different perspectives and experiences. By such an approach, participants took on a more open approach to different types of futures in relation to the museums’ societal role and mission. In the exchange after the workshop, it was highlighted as particularly important to be able to approach the future as open where several different alternatives are conceivable. Participants expressed it as liberating not to see the future solely as an extension of the present, and to be able to seriously engage in considering alternatives for the future.
Museum of Natural History in Gothenburg. Photo Gustav Wollentz
The meeting was introduced by the Vice-minister of Culture of the Kingdom of Spain. Mr. Jordi Martí Grau who emphasized the rights of all citizens to culture and creative work, stressing the significance of education in that respect, and that “there cannot be sustainable development without culture”. Grau emphasized the rights of all citizens to culture.
The meeting was attended, among others, by the Assistant Director General for Culture (ADG Culture), UNESCO, Mr. Ernesto Ottone-Ramírez, and by representatives of Cultural Ministeries from many European countries, the U.S. and Canada. It was moderated by the representative of Andorra and featured simultaneous translation of all contributions between Spanish, English, and French.
In my own short address to the participants I emphasized the opportunities for culture, UNESCO and MONDIACULT arising from the 2024 UN Pact of the Futures. In conclusion, I suggested for MONDIACULT 2025 to
integrate foresight, anticipation, and the benefits of ‘futures literacy’ in cultural policy around the world,
promote the potential of culture and cultural heritage for globally addressing the needs of future generations in the context of change and transformation.
In the context of the 17th World Congress of the Organisation of World Heritage Cities (OWHC) in Cordoba, Spain, 24-27 September 2024, Cornelius Holtorf ran a Heritage Futures Workshop for 21 elected politicians and world heritage managers from the Belgium, Hungary, Germany, Korea, Luxembourg, Netherlands, Poland, Sweden, and the US.
Two days before the workshop, UN member states had assembled in New York for the UN Summit of the Future where they passed a joint Pact for the Future. The Pact does not only acknowledge culture as an “integral component of sustainable development” but also calls for more “evidence-based planning and foresight” to improve the wellbeing of current and future generations. That makes developing modes of long-term governance and futures literacy even more urgent for the cultural heritage sector and World Heritage.
In our participative workshop (one group pictured at work above), we were together exploring in detail how cultural heritage relates to specific futures and how futures thinking can enhance the management of World Heritage Cities today. Participants enhanced their capability of imagining alternative futures and reflected on how their World Heritage Cities can contribute to finding innovative solutions for a better tomorrow.
During the Congress we also enjoyed a festive occasion in the Mezquita-Catedral de Córdoba including speeches by local, regional, and national politicians and a performance of Beethoven’s Symphony #9.
Today and tomorrow, The UNESCO Chair on Heritage Futures has been co-hosting Bodhisattva Chattopadhyay of the Co-Futures project at the University of Oslo. They are the hub of a number of interrelated and well-funded projects.
CoFUTURES is an international group working on Global Futures with its sphere of activities scattered across various communities, research groups and networks around the world. Among others, they work on speculative fiction, co-futures literacy, and contemporary futurism. An insipiring alternative to established approaches in foresight and Futures Studies that predominate in the corporate and policy world.
Last night, I finally visited The Interval – home of The Long Now Foundation in San Francisco. A wonderful location and initiative, promoting long-term thinking since 01996:
The Interval is a bar, café, museum, and the home of The Long Now Foundation. Featuring a floor-to-ceiling library of the books you might need to rebuild civilization, mechanical prototypes for a clock meant to last for 10,000 years, art that continually evolves in real time, and a time-inspired menu of artisan drinks.
The ‘long now’ and futures-thinking are as worth promoting today as they were back in 2006, when Michael Chabon wrote for Details:
I don’t know what happened to the Future. It’s as if we lost our ability, or our will, to envision anything beyond the next hundred years or so, as if we lacked the fundamental faith that there will in fact be any future at all beyond that not-too-distant date. Or maybe we stopped talking about the Future around the time that, with its microchips and its twenty-four-hour news cycles, it arrived. […] The Future was represented so often and for so long, in the terms and characteristic styles of so many historical periods from, say, Jules Verne forward, that at some point the idea of the Future—along with the cultural appetite for it—came itself to feel like something historical, outmoded, no longer viable or attainable.
On my visit to The Interval, I also noted two things that I had not previously thought about regarding the work of The Long Now Foundation.
Firstly, its thinking is most prominently focussed on technology rather than, say, social or cultural issues. But is the long-term future really a question that is best advanced by technological innovations like the Foundations famous “Clock of the Long Now”?
Secondly, while they certainly champion long-term thinking in terms of millennia rather than decades, they developed this thinking before the emergence of the concept of “futures literacy” at UNESCO. The latter emphasizes the skills of becoming aware of your assumptions of the future and of imagining multiple alternative futures.
I can’t help wondering about the future of the Long Now Foundation. In other words, how LONG is it until its focus is going to be adapted to one or more new futures?
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