Category: Environment

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In Through Out

The easy logic “In Through Out” has multiple applications from nutrition, data processes and process engineering. An obvious experience for everyone is the cooling of an apartment during a meteorological heatwave. The energy loss known during winter times from a blow out of warm air through gaps in windows or doors reverses during summer to become a “blow in” of hot air from the surroundings of an apartment. The throughput, is the relevant measure to watch out for. This means the amount of air exchange during a minute of maximum or minimum airflow. It has a direct effect on temperatures and humidity levels. For cooling purposes, try to maximize the throughput at times when the temperature difference is the largest. Easy exercise, just a bit early in the morning. Mechanical, chemical or electrical devices may assist the amounts of throughput as well. Process engineering is for all of us and at all seasons.

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Cooling-Heating Renovation

The public and scientific debate about the added value of investments in renovation of buildings has been ignited by the recent heat wave in Europe. Some renovations that were primarily concerned to safe energy in winter through better isolation of walls, doors and windows found themselves less well prepared with isolation against heat and sunlight. Hence, it makes sense to consider both topics, cooling and heating of buildings, jointly.
Reversible heat pumps can do this trick, if isolation has been installed or applied during renovation already. Additionally, materials used for isolation of buildings should show 2 measures for isolation: thermal conductivity and thermal resistance (R-value). Comparing both gives a fair idea about isolation quality in periods of heating and cooling needs. Albedo values are interesting as well as heat input during a sunny day is welcome in winter, but not during summer heat waves. The commonly used Energy Performance Certificate (EPC) for a building needs to be checked whether it is sensitive to excessive heat as well. (Image: BNF in Paris 2026)

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Beware Albedo

At times of high radiation from the sun, we suffer from high “albedo” values surrounding us. Albedo is scaled between 0 (black) and 100 (white) and is a measure of the reflection of light. Dark surfaces have a low Albedo, which means they absorb a lot of light and store this energy in form of heating. On the contrary, white surfaces or reflector materials like mirrors absorb very little of light as they reflect the light and, therefore store very little of it as heat.
In housing or urban planning this is an important indicator to take into consideration when planning for summer heat reduction, for example. Inner cities with dense construction, lots of windows, which in most cases absorb rather than reflect sun light, Light absorption and storage during the day will contribute to heat urban environments and inner cities during summer nights. This might be comfortable during winter, but in hot summer days the high reflection value creates additional discomfort.
Greening of cities is a powerful answer as vegetation absorbs the sunlight, but does not store it in form of heat. The glaciers and huge snow fields have shielded us from the earth heating up too fast in the past. Unfortunately, the lack of knowledge about “albedo” has lead us to undervalue these shielding effects. Light absorption by the earth is an additional driver of climate change in form of global warming. (Image: Brussels, Forest, Park Duden Community Gardening 2026-5)

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Climateflation

Central banks have started to deal with the impact of climate change or inflation, short “climateflation”. New and additional inflationary pressures originate in climate change and global warming and they necessitate a closer scrutiny. Heat waves, like 2026-6 in Europe, or earlier ones have created an upward pressure on prices. Loss of agricultural production can be severe due to weather extremes which occur more often and with greater intensity. Such extended hot and dry climates reduce the production of crops and spikes in prices that only reluctantly return to average levels shall cause price inflation (climateflation). These are the short term impacts.
The medium run impacts alter price relations and valuations of in sectors like housing and infrastructure. Badly isolated stocks of housing, schools or hospitals depreciate valuations and the heavy investments needed for isolation of roofs, walls and widows as well as heat pumps to produce cooling shall be in very high demand, which makes price increases more likely across the construction sector. As we expect new devices to be “AI-intelligent”, “mem-flation” will be pushed up as well. These factors can give a push to some economies which are producers of the products in high demand and able to expand production rapidly as well. Just importing higher numbers of air-conditioning systems from other countries shall worsen trade balances.
The major challenge, however, remains our inaction to stop global warming to avoid additional economic and human losses related to climateflation.

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École buissonnière

In 2026 the “École buissonnière“, the outdoor schooling has become a viable alternative to the schools that are overly hot during summer. But far beyond being an alternative out of necessity, schools as well as kindergardens adopt a form of schooling close to and in nature. It can be so much more than a simple interlude or excursion. Learning from nature is a precursor of bionics as well as compassion. After all nature offers ample examples of diversity and coping mechanisms. It is an option not only for learning purposes restricted to the young, but it is underexploited in continuous learning and lifewide experiences as well. There have been abuses also in history, most notably by Nazis in Germany for purposes of indoctrination. The learning opportunities to encourage a critical perspective of our modern, technology- and screen-dominated learning and life, are huge. They just need experienced guidance on the way of discovery, comparisons and collective experiences. Children open up and have fun, the more the pressure of classrooms is alleviated.  Learning about the importance of biodiversity from different angles is a very human value and includes our responsibility for other species.

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Gardening culture

There is a specific set of skills attached to gardening culture. You do not have to travel continents to experience the pleasure of gardening from more than just your own culture. Beyond the tradition of the French garden “à la Le Nôtre”, the English garden including the short precisely trimmed lawn and blooming arrangements, the Japanese gardens have a wholistic approach, which pay attention to broader human experiences of nature. A garden is a kind of sanctuary. It resembles more an internal journey rather than a showing off to others. Walls serve to enhance privacy to be able to open-up again later to others rather than a symbol of distinction and exclusion from the less privileged. Small places suffice to give room to a Bonsai experience. The very busy seaside resorts and port of Ostend on the Belgian coast has reserved a small spot for inner peace in its Japanese garden. (Image: Japanese garden “Shin Kai Tei” in Ostend created by Takahashi Sawano) 

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VOC for VCs

The research into VOCs (short for “volatile organic compounds”) is a busy research field in biology and environmental sciences. It might be of interest to VCs (short for “venture capitalists”) as well in the near future. VOCs are those organic compounds that orginate in animal manure as well as those emanating from plants have an impact on people working there or who are living nearby. Allergic reactions cause millions of days lost in working every spring or summer season. Long-term effects are yet another critical issue in this respect. Whereas the measurement techniques of VOCs have evolved a lot, the interaction effects of different VOCs are slowly producing interesting results that might eventually become of interest to VCs.
Abonde et al. (2026) show that there is a kind of communication between different plants via VOCs, which has an impact on growth and defence mechanisms of some plants. Amateur botanists have always wondered about the anecdotal evidence that some plants or flowers grow well next to each other, whereas other ones seem to deter each other. For crops, this mechanism has been documented and more experimental research of this kind will corroborate the potential of, for example, “natural fertilizers” in future. Remember to think of VOCs the next time you experience scents from animals, plants or flowers as a wonderful research topic with VC potential.

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Set and Match

The organizers of big tennis tournaments like at Roland Garros in Paris have to reach ever bigger audiences to be able to cash out the prize money for the top players and their expenses. Besides the number of spectators on site, the prime income comes from television rights and sponsorships through advertising. Gambling on set and match is also a rising annex market, just like tourism linked to the event. For such purposes Paris offers screenings, similar to the Olympic Games 2024, in the centre of Paris. The park “Les Tuileries” offered to follow the tennis matches on big screens against the background of the Eiffel Tower (image below). Of course, the “rue de Rivoli” nearby offers additional pleasures or take home goodies for spectators, which add to the overall budget spent by an average tourist in Paris. For people interested in a walk in “Les Tuileries” and the plants ( Acanthus), trees (Linden) and flowers (roses) have to choose the other parts of the park. Big cities have the chance to offer a bit to everyone within relatively short walks. 

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No mow May

For the sake of biodiversity we have learned how important it is to allow our gardens to grow during the month of May. Lots of insects shall benefit from the larger diversity of our greens. Equally, it is the perfect time to “collect” “pollen” from lots of neighbors’ gardens and fields, which will eventually show up in another garden. It is a bit similar to sharing flowers and plants in your local environment.
We just have to be careful about invasive species that have been quite successful to “surf” on the “No mow May” gardening wave.
In May 2026 the effects of global warming have been particularly felt in France. “Meteo France” has reported the very warm French month of May in 2026. Similarly, for most parts of Germany, particularly in the South West, the average temperatures were well above the 2° target already (Deutscher Wetterdienst).
With quite some rain before, the climate throughout May 2026 has favored rapid growth and advances in the blooming of the whole vegetation. You might have seen gardens in your neighborhood that looked very different from previous years for those who tried a “No mow May” in 2026.

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Bicycle Garage

The 2020s are the years to explore sharing concepts. Beyond car sharing we have become used to share scooters and bicycles for intermodal transportation. The concepts are subject to continuous evaluation and the choice between free-floating versus fix point stations remains a hotly contested topic. Despite using either one of both sharing concepts, families and friends might practice their own sharing of modes of transportation. Whereas for cars the driving licenses and insurances might limit the sharing, for private bicycles there are no such restrictions.
A little bit of basic understanding and practice of repairs allows to share family-owned bicycles with little effort. Equipped with a GPS-tracker, even free floating might be an option in addition to theft protection. With less space taken up by cars in household garages, bicycles can occupy, at last, sufficient space including a little corner for maintenance and repairs.

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Nature as a concept

We all hold implicit or explicit concepts of nature in our minds. There are few countries that have “battled” over the course of history with changing and often “politicised” concepts of nature. The exhibition in the DHM “Deutsches Historisches Museum” on “Nature and German History, Faith – Biology – Power” is convincing with this cross-disciplinary approach to the subject. The chronological structure of the exhibition starts with Hildegard von Bingen’s vision of nature embedded into the huge diversity of plants with almost spiritual power. Admiration of plants and the animal world, however, became an economic resource just like gold and slavery during colonization, being followed by industrialization as the epitome of man’s power over nature. Counter movements have been on the rise in the 2nd half of the 20th century. Another power struggle over how and who defines the dominant concept of nature in the 21st century. As nuclear energy, bombs and waste redefined the long-term consequences of “treating” nature, the battles about the prevailing concept of nature intensify. The exhibition in Berlin 2026 is a fine example of a historical perspective on the relationship between society, nature and technology, where the concept of nature becomes a malleable concept between the other two players or systems. (Image: Metamorphosis of the silk moth, DHM 2026-5)

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Gone fishing

There are still many persons who on a weekend put up a sign on the door: “Gone fishing”. We are of course curious what these people are really up to. The reduction of fish in the sea and rivers has become a real problem across the planet. Overfishing is a policy issue and fishing quotas have taken hold of most fishing waters. The past time or hobby of fishing is very different from the industrial form of fishing. The preservation of the environment has a high priority in the very own interest of being able to fish in future. Simply watching a person fishing in the sea gives the impression that time is passing at a different pace.

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Gardening Evolution

Researchers continue to study the impact of gardening on biodiversity and survival of insects. The study published by Tscharntke, Batáry and Vidal (2026) points our attention to the importance of areas in our gardens that are allowed to grow without mowing for several years. In many traditional gardening projects even in the 21st century, we observe a cut of grass-shoots in fairly regular time intervals, once a months for example. An English style lawn will be cut very short even more often than this. If we want to allow for an evolution of gardening and regaining biodiversity, we shall have to reserve substantial areas of a garden to allow grass-shoots to grow over several years (!). Such an evolution might be perceived in 2026 a bit like a revolution in gardening. Untidy spots are a response to “the need for unmown long-term refuges, protecting intact grass shoots for persistent insect populations” (Tscharntke et al. , 2026). The tree “Cercis siliquastrum” (Judas-tree) in the “Jardin des Plantes” in Paris dates back to 1785 and shows the impressive strength of nature to outlast changing gardening fashions even in a hotspot of gardening culture, history and evolution. Grass-shoots below might be allowed to last a couple of years as well.

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Switch off

We have many associations with the imperative “switch off”. Depending on your background or state of mind, you might associate “to switch off” with a mental state, i.e. to calm down. Instead of buzzing about, juggling with multiple projects or deadlines at the same time, the reduction on a few major preoccupations can be achieved through a switch-off. In electrical engineering the switch, as switch-off or switch-on, is a key component of electrical circuits. In programming languages a key element is the switch implemented as an “if-condition” in form of “do if X=True”, in its easiest form.
Let us develop a social science corollary of a theoretical concept of “switch-off”. At times of energy shortages the switch-off option becomes an often overlooked or discarded option. Switch-off an engine to lower overall consumption of energy is a very powerful mechanisms. We do this manually by switching off lights, or as programmed or AI-assisted versions in modern homes. States might impose the switch-off of street lights or loud music after certain hours. In an energy crisis the switch-off option needs to be moved to center stage again as any MegaWattHour not consumed does not have to be (1) produced, (2) moved to local provision and (3) distributed. Additionally there is (4) less waste that has to be taken care of. Hence, the switch-off option is a fourfold win-win-win-win-situation. Who cares about this option as all 4 kinds of savings do not increase a standard measure of GDP in an economy? Broader social science perspectives may offer precious indications that “less can be more“.

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Interests in failures

Decades or centuries after a successful or unsuccessful innovation, an evaluation of the reasons and circumstances of a temporary or permanent failure is informative. In the energy sector we observe another round of a power play in 2026. The more decentralized energy production and energy consumption models have been quickly put aside shortly after the oil crises of 1973 and 1979. The innovations using wind energy or solar energy of the 1980s have been discarded and were commonly considered as failures to provide cheap and reliable energy. An open international economy with expanding global markets for energy were perceived as a superior conventional solution. A country’s balance sheet of imports of energy and exports of higher value goods and services was the predominant economic rational and standard knowledge of the mainstream theory of trade. Other solutions, like a distributed “prosumer” model of energy might have ecological benefits, but would not show up in national GDP-statistics as a large part is home-produced energy and not accounted for in statistical measures of GDP, just like the home produced meals, health and care provided by mostly women. Societies, however, have a choice and an obligation to evaluate the interests in failures as economic and social development hinges on it in the medium to long run.

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Time dependent failure

The collection of failures has an ambiguous relationship with time. Some innovations that are celebrated at a specific point in time shall be considered failures at some later point in time. The Musée des Arts et Metiers has an early version of a solar panel on display dating back to 1996 (see image below, Photowatt 1996). This example reflects the cycles of public as well as expert opinions about technical innovations that either are en vogue or at disgrace. Ecological, design and economic considerations enter into the consideration of what constitutes a failure. Claims of European energy sovereignty may additionally enter into the failure equation. The time horizon over which energy savings are generated is yet another element in the judgement. The more general perspective should take sustainability and depreciation of quality of an object into consideration. The Flops exhibition just scratches a bit on the surface of an important and rather complex issue of the relationship of society, technology and innovation.  Surely, there is more to come in terms of flops and failures, and this is okay in most cases. 

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Electricity generation

On a global scale, electricity generation based on wind and solar has been growing quite fast since the year 2010-2024. Wind and solar have outpaced nuclear energy production as well as the stagnant sector of water based energy production. The Global Electricity Review by EMBER provides the statistical evidence for this evolution in 2025.
The interesting evolution arises mainly because countries with a lower level of GDP have invested heavily in solar and wind energy as this form of decentralized energy production does not need heavy investments in network infrastructure. Countries with larger population growth can keep up with electricity generation according to local needs. Local production and consumption become a key in strategies of local development. The finding that households in low-income countries use on average only 1 kWh per day is an amount that 2 small solar panels can already cater for (example image below).
Countries next to the equator have relatively constant days of 12 hours daylight across a whole year. The feasibility of no-carbon sustainable energy production is driving global growth in this sector.

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Quantum battery

The first prototype of a Quantum battery has been successfully tested. The Commonwealth Scientific and Industrial Research Organisation CSIRO with corresponding author James Q. Quach published the paper on the “quantum battery tuned for strong light–matter coupling” (Kieran Hymas et al. 2026) open access. Although there have been close to 20 papers on the theory behind quantum charging already, the demonstration as a proof of concept (in business terminology) has been missing so far. The superextensive charging with photons builds upon “a laser pump pulse with bandwidth ~31 nm and resonant with the LP branch induces excitations in the quantum battery” (Kieran Hymas et al. 2026 p.3). Since batteries need not only be charged, but also discharged in a safe and fast way, the prototype demonstrated also this additional functionality.
This is a huge step towards the feasibility of the “All electric society” as the efficient storage which includes fast charging and discharging beyond storage have been a bottleneck in the wider adoption of the “All electric society”.
(Image: old fashioned NiMH battery charging at home)

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Fukushima Commemoration

The date of 2021-3-11 is marked by an event that according to science should not have been realistically expected by anybody. The probability of a meltdown of a nuclear reactor due to an earthquake and tsunami in Fukushima were simply beyond a “normal” statistical probability. And yet, it did happen. The consequences are still visible and the nuclear waste has to be dumped somewhere and lots of contaminated water has to be dealt with as well. 90.000 persons had to evacuate the area. Many of them have no interest in returning to the devastated area. Moreover, the psychological damage to the perceived security causes continuous trauma. The psychiatrist Ryoji Arizuka, interviewed for the French newspaper Liberation, reports that victims find it easier to cope with the “natural disasters” of the exceptional earthquake (9.0 on Richter scale) and the tsunami than with the man-made disaster of the meltdown of the nuclear reactor. Whereas the former disasters can be attributed to external forces, the latter example of a the explosion of the reactor is due to a failure to estimate the risk (technical, human and political) of an explosion properly by engineers and subsequently by politicians.
The commemoration of Fukushima by its governor Masao Uchibori in 2026 is a reminder that more risky technological progress comes potentially with higher costs to society as well. These “risks for societies” will have to carried by some selected regions. Solidarity with people who carry disproportionate amounts of risk should be “addressed” right from the beginning of the decision to use a risky technology, as an attempt to “internalise” the likely costs to society, eventually. Perceived cheap technology turns out to be very costly using different probabilities of associated even unlikely risks. (Image: Global stone project). 

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Fossil costs

On 2026-3-5 it has become sufficiently clear that the USA and Israel attacks to topple the terror regime in Iran have repercussions across the world markets of fossil fuels. 1973 and 1979 had told us already the lesson that a reliance on fossil fuels like oil and gas, which is produced in only a small number of countries, can disrupt energy supplies drastically. 50 years later we are much less vulnerable to supply shocks due to the stronger reliance on renewable energy sources. The supply shortages are only likely to happen, but energy suppliers are fast to cash in on these expected shortages. Prove of evidence that energy markets are driven more by expectations than actual availability of fuel stocks.
The advertisement of a Belgian recycling company “Powered by sunshine, driven by electricity” is a perfect summary of how to deal with shortages of fossil fuels (MCA recycling in Brussels, Image: former Brussels stock exchange).

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National interest

Especially in times of international conflicts, it is customary that politicians refer to “the national interest” as a justification for their actions beyond the state borders, commonly named foreign policy. There is a huge literature on the subject, in which the concept of the national interest is useful, (1) because it suggests some higher ranking political goal, (2) because it clarifies and prioritizes a country’s goals, particularly at times of military interventions and (3) because it “arouses the support necessary to move towards a realization of the goals” (Rosenau 1968, Int. Encycl. p.34).
A critical assessment of this concept in international relations should start with the democratic perspective that a country’s government is subject to regular elections, whereby the goals a previous majority had put forward, might substantially change as a new majority takes the lead. Continuation of the same foreign policies is not excluded, but at least subject to revision. In authoritarian regimes the definition of the national interest is probably more stable, because authoritarian leadership does not hesitate to define the national interest in “splendid isolation” from its people.
Overall, the concept appears to serve mainly communication purposes, both internally as well as towards the outside as in communicable foreign policy goals. Conflicts between countries can thus be named and become subject to diplomacy and international treaties. But we have to fill this with substance over and over again as new topics arise like climate change and global warming.

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Holistic public health

Based on case study in Queensland Australia, Boocock et al. (2026) propose the wider application of holistic public health laws. Due to effects of global warming the local burden of disease may rise due to larger scale floods and subsequent growth of for example mosquito populations that transmit infectious diseases. It will be necessary for societies to understand the processes behind the growth of mosquito populations and what can be done to prevent and protect oneself from the consequences. This is not only an environmental issue, but also an issue of continuous learning across all strata of society. Neighborhoods tend to suffer the same impact of chemicals used or the spreading of diseases like Dengue or malaria. The case study makes a convincing argument about the intrinsic relationship between the social and environmental processes at work. 

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Democracy in Energy

Can there be democracy in energy? Power supply and power distribution are core topics in the theory of democracy as well. One of the foundations of democracy is the separation of power into a legislative, executive and a judicial power. A resilient democracy can assure a sufficient functioning of this fragile “balance of power”. In an energy market or a nation’s energy distribution a comparable balance of (electric or gas) power provision might be envisaged. The costs of parallel infrastructures of power distribution are high, but the resilience of overall power distribution will benefit. Also from a redundancy perspective, more than one distribution system may step in if there are failures or delivery problems with one of the distribution networks. The democracy in energy perspective goes beyond this simple analogy. Power supply as well as power distribution have been concentrated in large public or private enterprises, which might care little in terms of security or reliability of the overall system, not only during armed conflicts. Independent energy production and use, for example through wind and solar energy including batteries have pushed the feasibility of more democracy in energy to new boundaries. These technologies have enabled a new bifurcation and make room for more democracy in energy. It is a rather realistic version of a previously rather utopian vision.

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Democracy in architecture

Over centuries we have pondered how to bring more democracy into architecture. This very idea is different from designing parliaments or other democratic institutions like courts or the representation of executive power in a democracy. Bottom-up or direct participation, beyond the pseudo open participation in a competition for the chosen best design, could take the form of voting by and/or listening to the people before any realization. Rather than relying on the choice of elected representatives, we may envisage the observation of people’s choices. Such a kind of bottom-up approach has been chosen by Anna Jung and Lea Krueger who let persons chose, where they wanted to take a rest at the Kulturforum in Berlin by moving chairs to a  specific place or a nearby location. Rather than yet another grand design people could freely choose their favorite niche for 1 or 2 chairs. Sometimes just looking for shadow next to a wall or under a tree, sometimes desperate for a little green spot. Democracy in architecture can simply mean to think architecture from the people’s perspective or an observed user’s experience. Democracy in architecture could resemble a bit more the internet revolution and think in terms of user interface, UX-design. With the construction of the “Berlin Modern” well under way, such green niches shall be appreciated by many people passing by and those who would like to rest for a while.  

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Futures for Amazonia

Diversity is the treasure of humanity. This was and remains a permanent challenge as thinking in multiple perspectives is taxing our minds. Simplicity can be a value in science or mathematical proofs, but cybernetics teach is also about the usefulness of a “requisite variety”. The exhibition Amazonia at the Quai Branly in Paris takes us on a journey through richness of the Amazonas, its people, biodiversity and landscapes. First of all the curators Varison and Baniwa manage to accompany us in opening up our minds to non-western concepts, which have for centuries been considered as less developed, but only from a western point of view or imagined sort of cultural superiority. Even nowadays the West seems to be convinced that for the liberation of, for example Venezuela, only a western power can achieve this. The 300 different indigenous peoples of Amazonia have lived through hundreds of years of threats to preserve their cultures. They have managed and they have inherited and still develop multiple ideas about “futures” of the Amazonas region. In just 100 days this exhibition has reached more than 100.000 visitors. Most of them will be convinced of a future and, yes, futures for Amazonia. 

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Premium for silence

People are willing to pay a premium on housing prices for a more silent environment. In the study Enrico Moretti & Harrison Wheeler (2025) estimate that the construction of a silencing wall near a noisy traffic junction or road will increase prices for every decibel of noise reduction by about 3%. Distances closer to the noise shields get higher increases and this mechanism works even up to 400 meters away from the isolation. The investment in decibel noise reductions (not statistical noise) meets a willingness to pay a premium on housing prices. Investment in positive environmental effects (silence) have an obvious marketable premium value. This is most likely just the obverse effect that noise nearby housing is penalized and part of the social mechanism of gentrification. Housing prices and rental costs are known to be powerful drivers of gentrification as well.

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Utopian Mobility

From time to time we have to reconsider our investments in mobility infrastructure. What seemed to make sense in the 50s,60s or 70s often makes no sense 60 years later. Highways, which separate city districts like walls belong to rather utopian visions about City life and mobility, progress and living conditions. These utopian individualized mobility solutions don’t seem to serve us as well as we believed, or were made to believe, more than half a century ago. Empty highways midday at the turn of 2025/26 tell their own story about liabilities from the past and outdated ideas of technical and social progress. Sharing solutions have become very popular and the younger generations adopt already different mobility patterns than older generations. Each generation adheres to its own more or less utopian mobility model, adjustments are likely to be made accordingly. 

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Dystopian Utopia

Anybody who had warned about the disastrous effects of global warming 10 years before 2025 would have been branded as telling a dystopian tale. However, according to the report by the climate scientist and the “World Weather Attribution Network”, the year 2025 has been among the 3 worst years for humanity with thousands killed and millions displaced due to extreme weather events on our planet. It is all to easy to turn the page and focus on a New Year for those unaffected, but the costs of these man-made disasters have reached dystopian levels already, much faster than projected 10 years ago. 10 years after the Paris Agreement the efforts to cut emissions haven proven to be insufficient. The consequences of this failure hit the poorest people and regions the hardest. Beyond the importance to monitor and to keep track of the events the compensation for people who suffer the “externalities” of unrestrained emissions has to be addressed with international solidarity as a basic human principle.

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Birds nutrition

The winter diet for birds is less varied than during the other seasons. Human assistance seems to be appreciated as well even if food supply in inner cities appears to be abundant with huge amounts of wasted food in streets ans backyards. The different diets of different species are not easy to cater for. It is a two way learning and adaptation process. With a narrower range of birds feeding in cities, the task is easier than it used to be. Bringing back more diversity of birds in general starts with offering different nutrients as well. A long way to go.

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Projection Painting

Nature teaches us lots of tricks. Bionics are all around us in the 21st century, but the marvelous projection of a winter tree on a huge screen comes close to a naturalistic painting. The projection of the branches and leaves of a tree originates from the early sunset in December 2025 in Berlin. Nature teaches beauty and the techniques to imitate or reproduce the effects. Its up to us to keep our eyes, senses and minds open to enjoy the beauty in our surroundings.