Tag: environmental

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Spring Newborn

For many species spring is the time for newborns to enter into life. Pigeons in the neighborhood have completed the breeding phase and called upon the newborn to crack the shell open. Nourishment is already abundant in the surroundings and parents appear to be impatient to quit the guarding of their offsprings Time the next generation soon to take over a similar role. Pigeons don’t ask questions of fertility they reproduce in abundance of the environmental conditions are alright. Human beings are a danger for them as some feed them well, but others defend their territory, housing or living space against and intrusion. Compromises are not easy to accomplish. Fans of the song writer Georg Kreissler keep humming with dark humor: „Geh‘n wir Tauben vergiften im Park …“. The struggle for survival of species has changed in kind and we are more than ever before responsible for living conditions of other species as well.

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Housing renovation

The huge amount of buildings that need renovation is a task for each generation. New constructions are relatively easy to realize even to the best available standards. Particularly energy standards asking nowadays for serious isolation of buildings are easy starting from scratch. Energetic renovations of existing buildings are much more challenging and have to take into account the various stages or predilections of previous generations. Repurposing of buildings raise additional questions like transforming a family home into a representative office building. New technologies like fiberglass instead of copper cables or copper or plastic tubes instead of other hazardous materials cause additional costs and worries. The use of asbestos for interiors of previous generations has created the greatest liability for existing buildings. Technological choices of the past and also of the present (heat pump or not) have lasting consequences and sometimes even health effects. To cherish old buildings and styles is a mixed blessing as the renovation of housing confronts home renovators with more tricky challenges than building a new home. Incremental repairs might do the trick rather than all in one go renovation, however, you might enter into a situation when renovations are always on your mind. Not only the times are a changing, but homes are a changing, too.

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Own Production

The 21st century has seen many innovations. Solar energy has been around for at least 3 decades now, but the wide spread application and adoption of it through consumers has taken quite a while. Nowadays you can buy a reasonably priced solar panel in your local shop selling gardening tools and home appliances. Solar panels have moved from a niche product to become an ordinary home enhancement product. Previously, the production of energy was highly regulated and restricted to business activities. Hence as producer and consumer of your own energy you became a “prosumer” of energy. Just refrain from selling the energy to your neighbors and you will be happy monitoring your own energy production and your energy consumption throughout the day as well. Suddenly, you might make a few behavioral adjustments to your daily routine. Throughout the day when the sun is shining bright you start to think of what kind of energy consumption you might want to switch on at the time. Charging mobile phones, cooking meals and washing are the obvious candidates that do the trick. Charging a battery of a bicycle(s) is also a good idea. The excursion of the evening or cycling to work the next few days is feasible with this as well. There is a slight danger to check the energy production frequently to optimize the return on your investment. In this case it might be expedient to invest also in a battery to store the energy  for a longer time. No stress for consuming your nuggets, but initial investment costs are substantially higher, albeit prices for batteries have come down significantly in the last few months. “Prosit prosumers”.

 

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Sun power

Statistics of hours of sunshine in Germany and many European countries show an extraordinary amount of sunny days in March 2025 compared to previous years. This opens up a window of opportunity to produce electricity already in a month previously less likely to yield a lot of energy. With more likely 8 months of decent electricity production the efficiency of investments in solar energy reach break even points earlier. Time to think of expanding the share of renewable energy even further. The cost effectiveness is improving in rather unpredictable ways. Economists, of course, consider opportunity costs in this case the alternative to use oil or gas despite the higher levels of CO2 emissions. As the prices are currently lower as well, without an easily predictable trend, solar alternatives are a valid option.

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Time Horizon

For ages human time horizons have worked as a succession of generations. With substantial population aging we have many more families where we find 4 generations alive at the same time. In nature and with respect to biodiversity the sequences of renewable have not changed much. Old trees that have been cut will take another 100 years to grow old again. Wild fires or human negligence risk big in this respect. Forests take several human generations to grow and thrive. Diversity is key there as well as many fast growing monocultures have increased risks in case of fires caused by global warming. Annual inspection of a forest that suffered a severe drought and fires is still looking dismal compared to before. (Foret de Senart, France 2025).

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Greening Interiors

The greening of facades of houses is an old tradition in many western countries. The outside of a home then changes colors with seasons. The home for insects and birds feeding on them makes a small contribution to biodiversity as well. Greening interiors is a more rare instance. Of course flowers and plants can contribute a lot, but there is yet more scope to green entire walls inside your home or office.
Moss has advantages to add humidity to the air. You might like the acoustic effect as well in busy environments. Taking care of moss is not easy. Professional assistance (Link) or renting options might be a good option for office buildings. The wellness enhancing effects are also interesting for some people who susceptible to the calming effects of a more natural environment. It is a matter of care and respect for air quality that is reflected in the design using green interiors.
Circularity is another advantage of the materials. We can so a lot for biodiversity if we really wanted to even in urban spaces. Global warming will force us to think more and more, and sooner than later to make use of such innovative solutions. For the time being they remain a luxury option. For the wealthy, greening interiors is easy, it much less an option for restricted budgets and people who are obliged to focus on short-term survival. However, we have to get started with the greening of our planet again, any way.

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Californication

In a song by the „Red Hot Chili Peppers“ the term californication appeared for the first time as far as I remember. This song is rather critical of the superficial californian way of life. The belief in the dream that you may get rich quickly in California has suffered another blow wit the thousands of homes burned in the wild fires in January 2025. Dry and arid areas are spreading and the lack of water makes it very hard for firefighters to protect homes, particularly in difficult to reach valleys. Stormy weather adds to the speed of fire spreading. All these elements are predictable additional risk of climate change. Californication is the old and new word to describe a trend of acceptance of increasing climate risks by at the same time neglect of environmental precaution. Hollywood is just around the corner there and the film industry might come up with some other narratives than just the previous californian dream. Get rich fast, then run away. Sustainability is a more difficult concept and yet it keeps getting more and more attention.

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Aridification

Man made climate change and local policies increase speed of aridification (Link). It is not only the Sahara desert that is spreading out, but the lake Aral is another horrible example of the disrespect mankind attributes to its own resources of living. As more regions become arid due to our faults and long term consequences of industrialization we provoke human resettlement of an increasing scale. Water resources are and have been for centuries the major reason for people to settle nearby. Aridification of the soil like in California increases the risks of wild fires. The costs associated with aridification are very high and such areas can no longer be insured through normal private insurers. In most cases poor people or countries are affected the most, but we are all likely to bear the consequences in one way or another. We will have to accept that the size of habitable areas on earth decreases while the peek demography of humans is still at least a decade away from now. Not to tackle aridification is not an option. When shall we ever learn? (Image: sketch for Hagar and Ishmael in the desert, by Navez 1819, MRBAB)

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Air Concept

Well yes, this is the latest fart in design and architecture. The Berlin International University of Applied Sciences composed an exhibition on “Air Architectures” which takes air seriously. The international group of 7th semester students took Air Architecture seriously and developed their ideas in the context of a curated exhibition. Nice semester project.
Air is a fundamental precondition for humans to (co-)exist. The biology of air (breathing) or the chemistry of air (fine particle matter) have been studied extensively. The physics of air flows in cities receive more attention as well in architecture. Interior design has yet a lot to contribute in the age of heat pumps and air conditioning.
Let’s think architecture from the perspective of air and air flow. Depending on our cultural background we might have very different associations with air. Indian or Chinese practices like yoga or Tai Chi teach us to take air more seriously than Western practices. Most architecture in cold countries of the northern hemisphere aim to keep air to the outside of buildings. Yet, the percentage of humidity of air is a serious concern of architecture as well. Air flow and quality then becomes a key issue of construction and architecture, somehow through the back door.
Maybe in approaching architecture we might think first of what is or has been the architect’s concept of air or aerodynamics. 100 years after the death of Gustave Eiffel and the Olympic Games in Paris, we still gain from thinking about air (not only air pollution) and its dynamics. Looking forward to the next generation of air architects.
(Image: Exhibition, Air architectures, at Berlin International, University of Applied Sciences 2024-12)

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Mobi Tech

There is much more to mobility and technology than new cars and bicycles. Innovative infrastructure provided by new public services allows new forms of mobility technology to strive. Charging points across a country are crucial to ensure smooth and smart mobility for example with e-cars and e-bikes. Software guides us to next or cheapest charging point in the surroundings. Public services provide the basic data on this and need trustworthy updating and repair of the infrastructure to avoid frustrations. Navigation systems need up-to-date info on areas with restricted mobility due to high emissions (diesel) or illegal parking of shared bikes and rollers to avoid a banning of share options in inner cities. Data allow the guidance of traffic and combinations of different modes of transport. Mobility tech is nowadays a largely data driven process and public services provide important basic services and information for innovation and reduction of emissions in the field of multimodal mobility.

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Water Quality

Obviously, water is not just an issue of quantity, but also quality. The availability of sufficient quantities of water in a region depends on rain, its storage, and the use of these water resources. The quality of water is a subsidiary issue, as lack of inflow causes concentrations of nuisance in water to rise. Global warming will most likely intensity the concern for not only the quantity, but also the quality of water.
Public services are in charge to sample and monitor levels of water quality for consumers. Independent of public, private or public private partnerships in this field there is a need to check from time to time the quality of water. Public institutions do a great job in monitoring water quality, but as science progresses there are new sources of pollution that enter the already complex analysis of water quality. New chemicals and remains of medical or pharmaceutical analyses have been retrieved from water and, sometimes, they have reached critical or unhealthy levels.
More detailed monitoring is necessary and new digital tools allow to improve just this type of monitoring to inform policy makers on shifting patterns.
A project of that type “Urban Green Eye”, for example, allows to monitor the artificialization of previous vegetation to show up on satellite images of Germany. Independent groups, citizens or communities might find it useful to use their own sampling and testing to guard against abuses or dysfunctional public monitoring systems. Start-ups like “Hydroguard” offer services to support activists, communities or public services in their own efforts to ensure water quality.

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Water as a Service

Most of us are happy to turn on the water tap and enjoy the bubbles of fresh water. In other parts of the world this is considered a luxury and precious good. Public infrastructure takes care of water supply and treats waste water. We hardly even notice. This is changing in many regions of Europe now and Berlin and its surroundings are a good example of the challenges of water as a service. We need to sharpen our awareness that, yes, climate change again, has changed the priorities of water supply. Some East German regions face already a water supply shortage due to lack of rain water and adequate measures to store rather than evacuate rain fall. The German weather service (DWD) offers not only the info on rain fall, but also several indicators on soil humidity from 10cm to 200cm under the surface. These measures are important for crops and agriculture, but also for trees and vegetation in general. The droughts of the last years show a lack of humidity in large parts of East Germany.
This is the starting point for the “citizen science” project in the region of Brandenburg. The “Wassermeisterei” brings together people interested in water management to monitor soil humidity with a shared infrastructure and citizen enthusiasts to raise awareness and draw conclusions on the local preconditions for agriculture and forestry. Knowing about the evolution of water availability over time allows to make more informed judgements about the need and potential of a continuous and improved “water as a service”. The presentation of the project on the e-government fair was a reminder to take water more seriously and to value this crucial resource with more respect.

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Ranking Enterprises

The Spanish economic newspaper has published on its front page an updated ranking of the top 10 Spanish companies using environmental, social and governance (ESG) criteria (see below). elEconomista.es on 2024-10-12 shows through this updated ranking that ESG criteria continue to be relevant information for investors. It is not just a nice to have information but gives important information on the sustainability record of a company. Continuous monitoring is key to show and reward the efforts and investments companies have made to improve sustainability. This information needs large distribution in order to keep up the awareness that there is more to a balance sheet than just turnover, profit margins, debts and investment. Churning of employees creates costs to society as a whole as well. Any early information on ESG indicators, therefore, allows a much broader assessment of the full impact of enterprises, 360 degrees and over time. Certainly a good example to follow up on.

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Happy Runner

The happy runner is a nice example of how hard it maybe to experience happiness through running. The so-called runner’s high is available to everybody, if you manage to run long enough already. Most predictions put the threshold distance at about a 1 hour run. The reward for this effort is a special feeling that exceeds the pain or it makes you forget or supress the pain at least temporarily. Special reinforcements can be achieved through the big city runs in exciting places with thousands of people cheering you on. This has become a big business as well. Training for such an event might raise your feeling of happiness substantially. The chemistry of the endogenous production of stimulants of happiness in our body has been enlightened substantially in recent years (partly as doping control). Most of the brain active drugs our body can produce itself, although this involves a lot of physical and mental effort. The rewards are pretty healthy for most runners contributing to their basic level of happiness. Running outside, has contributed more to happiness for me more than the same exercise on a treadmil. Maybe, the environment is part of the happy runner’s high effect.

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Traffic Speed

Most people use cars or other automotive vehicles (e-bikes, e-scooter) to get faster from point A to point B. However, speed of traffic causes trouble for other groups of mobile persons. Demands on attention rise, despite the abundant use mobile phones even during driving a car. Mapping systems and services from A to B have become an almost daily exercise. Statistics on road accidents that involved inadequate speed are between 20 and 30 percent of all deadly road accidents, depending on the source of information and country (Example D). Frequently, speed is not the only cause, but other behavioral mistakes occur jointly.
Traffic signs are a basis to make drivers aware of accident prone locations. Too many of them may even lead to the opposite effect of ignoring the signs. Reducing the speed of traffic in inner cities is a steep challenge and many cities invest substantial amounts of money and effort to monitor and try to control better excessive speed. Schools, sports centres and shopping areas are all hot spots of automotive and pedrian encounters. They deserve special attention. Penalizing excessive speed is one way to nudge behavioral change. Although the statistics on the huge amounts of penalties awarded does not seem to alter the behavior of traffic participants in the short run. For some it appears to be a regular part of their budget of mobility with no consequence for behavioral changes.
For years the dangers of inadequate traffic speed in cities made young families and older persons leave more risky inner cities, but adaptations of hot spots and increased control systems seem to work in the long run. The “externality” of inadequate traffic speed is higher costs for the health system and society at large. About time to make a “behavioral turn” in traffic speed.

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freight transport

The transport of goods is an important and crucial economic sector to achieve reductions in CO2 emissions. According to statistics from Eurostat Total Road Freight Transportation increased by an annual 0.6% percent between 2019 and 2023. Considering the slack during the Covid-19 economic restrictions this is a remarkable development. Most people agree that more freight on rail could allow a much better performance concerning CO2 emissions. This needs substantial investments in infrastructure and intelligent solutions for optimised and accessible freight loading points. The logistics of the last mile for delivery has found many innovative solutions with battery-supported e-vehicles. The tough issue seems to be the production of e-lorries at competitive prices to the Diesel-engines. Considering the legal obligations to take breaks to ensure sufficient concentration of lorry drivers, the battery charging infrastructure has to be planned accordingly. Ports and airports a certainly key infrastructure for freight transport as well. Industry has additional key locations with high freight frequencies and tonne-kilometres. Eurostat data show that EU-wide empty running vehicles account for about 22%. Scope for optimization is, therefore, a continuous challenge for the sector.
E-transportation is high on the agenda in the sector and production of e-lorries a big challenge. There a many positive signs that the sector has taken up the challenge as there are an estimated 100.000 € per year cost advantage of battery-driven lorries compared to traditional ones (Le Monde 2024-9-24 p.16). This is simply a long-term survival issue for the sector. Smart transport solutions add to the productivity potential of the sector in combination with electrification.

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Buzzing free

It is always a chance to be in a city that bans cars for some time from streets and bicycles and pedestrians can walk freely in the city. On September 22nd 2024 this is the case in Brussels. In addition, the public transport system allows people to buzz around the city free of charge. Of course this is an invitation to get to know areas of the city where you normally don’t take the time to visit or mix with people. The police used the time to teach children how to cycle in a city in all security and respecting basic rules despite the enthusiasm for speed or going round in circles. Unfortunately, this happens only one Sunday out of 52 in a year. It is just amazing how the feeling of safety on the road changes again. The level of noise and pollution drops to levels of the countryside. Buses and trams pass the city easily and most people get around faster than they do on other days of the year. It is a bit like a coordinated health intervention for the stressed urban survivors. This experience is a modest reminder of how nice it was in Paris during the Olympic Games 2024 when prioritizing mobility beyond cars haa been effectively implemented for several weeks.

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Green Olympics

Paris 2024 has won a medal for the Green Olympics. Sustainable building of Olympic sites is a crucial element in this struggle for saving resources. Just as important is the CO2 footprint of the transport within the city if you cannot prevent thousands of people from flying to the venues. Public transport in Paris used the occasion to improve its services considerably. The restrictions to cars driving around in the inner city also for security reasons made the Olympic experience for Paris a healthy walking experience for all. The view from the “Arc de Triomphe” during the Olympics in Paris is even more pleasant and relaxed as the noisy and polluting traffic is reduced to minimal levels. You were able to grasp the feeling what inner cities could be like if people were the overriding concern of cities rather than circulation of automotive vehicles. Redressing this balance in favor of people living, working and visiting is overdue and we all know this. The city of Paris used the occasion to demonstrate that another way or compromise is possible. This is also a way to write history and create unforgettable moments. Paris discusses already what to keep from the Olympics for longer. Maybe the vasque, maybe the cleaning crews. New Metro lines, of course. Why not the different traffic and mobility patterns? It’s well worth a lasting Green Olympic medal.

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LED light

For decades now, we have the LED light technology around us. In many instances we do no longer realize the presence of light emission devices (LEDs) for example in our television screens or in road lighting. However, this still is an exciting field of electrical engineering and the replacement of gas lighting as well as other electrical devices with higher energy consumption are high on the agenda for sustainable lighting. There are important health and security aspects related to lighting (sleep and road traffic).
In Berlin the demonstration and test area for innovative LED lighting is also an open-air museum which can be experienced throughout the year. The party-goers and club visitors might best know the demonstration street as part of the “Deutsches Technik Museum” The energy saving potential of LEDs use in street lighting is substantial and should interest most rural and city councils. The demonstration of the differential effects of targeted lighting and broad illumination based on the same technology is impressive. Of course, the design aspect of LED-technology with the colourful potentials are of interest beyond the technical aspects to replace for example gas lighting. There is much more to lighting than just opening your eyes in the morning. (Image FG Lichttechnik TU Berlin)

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Air quality EU

On some days of the year there is a cumulative effect of bad influences on air quality in Europe. Cold winter temperatures increase emissions from heating. Outdated heating with coal, still important in Eastern Europe, causes high amounts of extra particles in the atmosphere. In January 2024 a train conductor strike in Germany irrespective of the good reasons for it, makes people take their cars. Road blockades by opponents to reducing diesel subsidies to agri-business add to the pollution situation on a specific day. Overall the population suffers and breathes additional amounts of cancerous particles. Particles settle as dust on crop producing soil, of which we all feed ourselves. This is a vicious circle, which we need to break in the interest of all of us, particularly for the more fragile people and children. The latter start to crowd the medical doctors with sometimes lacking the delivery of crucial medicines for this target group. Where do we go from here? Compromises are key, security of supply chain and allowing, not too much, time for transition periods.

source aqicn.com 2024-1-10
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Put People First

Put people first is a natural claim of human beings. We tend to abstract from the fact that we implicitly rely on a sufficient biodiversity for our survival. Therefore, the natural claim to put people first has many preconditions itself and severe implications. The most obvious implication is related to our world of production and consumption. We need to build an economy that serves its people rather than one that uses up human resources and discards people to an inferior rank of importance. Externalising health and safety at work to save money in the process of production will only cost society much more later on. This needs to be part of the balance sheet of companies not only “national accounts” or relegated to some health statistics hardly known to the public.
Put people first in consumption, has come to our attention recently. With energy prices rising due to Russia’s war on Ukraine territory we have learned that energy prices may be grossly distorted. Firms’ versus consumers’ energy consumption became a thorny issue. Even legislation, like in Germany, that put people’s energy consumption before companies’ consumption of energy became subject for debate.
Same issue with artificial intelligence. Let’s put people first here as well. Discriminating use of language or biased conclusions due to wrong data input to train AI is not acceptable as excuse. AI may serve humans in their work or leisure, improve production lines through error detection or early onset of disease, but it cannot replace the human verification of a just or otherwise justified human intervention. Humans are not perfect, never will be either. This is a tough rule to teach the algorithms that guide AI. Put people first has a strong interpersonal or solidarity element enshrined in it. This is what matters, now, in the medium term as well as the long run.