Category: Social Science

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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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Gone Gliding

The seaside resorts offer additional experiences to people beyond swimming. Gliding on the water or in waves is an affordable exercise for everyone. It  just needs a small board and off you go. Falls are a usual part of the exercise. Beware of them if you have any prior conditions. For the 50+ generations some regular prior falling exercises are a must. Youth has the advantage of sufficient power per kg of body weight to afford repeated falls. Water and sand soften the falls. The gliding experience, however, is a great compensation for the risks taken. Not for everyone, but early experiences in or beyond schools give pupils a head start on how to balance out yourself in specific situations. Spectators and the experience to be under observation might influence your performance for the better or worse. Balance is a rather complex experience combining body and mind coordination for all ages. 

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Rare instruments

The museum of musical instruments in Brussels features many rare instruments. The collection of grand pianos is a bit hidden on the top floor of the splendid Old England building in the concert hall. The lack of explanations allows you to discover the collection yourself if you happen to be early for a concert for example. Varieties of special features for grand pianos, you might not even have dreamed about, are up there. It would just need a few demonstrations of the technical features to reach larger audiences for these marvelous pieces. The combination of grand piano and harpsichord features has not made it into many concert halls, but special appearances could find their audiences. Maintenance, however, is a costly issue, whiich might have to rely on devoted sponsors in the cultural treasures of rare instruments. 

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Long run

The future orientation is a principal component of any investment. If a society stops investing its impeding its own ability to adapt and grow. Investment costs today will likely generate returns in the medium or long run. A caveat applies. Some investments may cause long running liabilities, like nuclear energy. The choice of which investment to choose, therefore, is crucial. The investment in people is likely to have a positive return in the long run because it remains an investment that has a high potential to adapt to changing circumstances rapidly. Training as scientist allows to do both fundamental research or to choose an applied field with little reorientation. A focus on the long run has advantages of likely stable returns if previous forecasts in what to invest were correct and reliable. This is the point where besides the difficulty to make good (technological) choices, probabilities enter the equation. The longer the time horizon, the greater the probability that relevant changes, which impact the future returns, shall occur. At best, some of these may cancel out each other in the long run. The potential that some risks are “too big to fail” does not mean that shall not occur (zero probability does not exist in technical nor human decisions. A sound theory of social investment would be a great step ahead for humanity in the 21st century. (Image: Ostend street art 2026-6) 

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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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Internet pain or gain

Billions of people are forced to lose time when clicking through webpages. Instead of the default  to deny cookies, we are forced to “opt out” in most instances to a collection of random data-hungry, largely in-transparent and more or less risky cookies. It could be simple. It just needs a consensus to make the no-cookies rule the default. By such a simple measure the open information part of the internet is strengthened again. All for pay or “pay-with-your-data” offers on the internet would have to make you to confirm your “opt in”, thereby alleviating the burden for search of information. Huge corporate interests that rely on advertising profiles are, of course, an obstacle to such changes, but search engines of the internet would gain importance again before generative AI and AI-agents shall make own search and clicking on cookies denial a different routine again. For the time being we keep wasting our precious time to deny cookies. Just changing the default shall bring back a better internet and the focus on ease of access, diversity of information and better privacy. Make the internet fun again! Choose your browser consciously as well. 

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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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Ensor Home

There are few artists who stayed in their home for almost all their life. James Ensor was a personality who was profoundly attached and continually attracted to his native city of Ostend. After a short and unsuccessful spell at the Brussels art academy, he returned to his parents’ home and due to a heritage from an uncle, he could live in a nearby house, which also served him as his atelier. Although I did not come across documents that showed he had traveled a lot, nowadays his art work is spread across the globe. The seaside resort of Ostend was a real tourist destination and, therefore, many famous people of the 1st half of the century passed by and met with Ensor there. Not only fellow artists, but also scientists like Albert Einstein. Critical minds and people searching beyond the trodden paths must have been attracted to him, a personality who dared to challenge conventional painting and techniques of his time. A reconstruction of his atelier and several animations give a lively modern touch to his work and living style. My take home message from the Ensor Home: The search for inspiration might be just around the corner.