It is always a consideration whether the further use of an older device does not require less energy or water than the production of a new, energy-efficient device. Therefore, the energy requirement along the entire product life cycle (from production to use to disposal) must be considered. Sometimes someone needs a different device and can't afford a new one - then a used device from someone who has bought a new, more economical device, of course, also makes sense. With some devices, the top values are only achieved with large quantities, i.e. washing machines with a lot of capacity. It is to see whether the top values also apply with lower filling quantities, for example for single households.

LED 'light bulbs' are now available for really all lamps, even with pleasantly warm light colors.

Motion detectors make sense in all rooms including outdoor areas, where we potentially let the light burn for too long, for example in the hallway, basement, garage, etc. Of course, it is important that the light does not stay on for too long.

Standby power consumption is often reminded and extrapolated. For example, if a TV consumes 5 watts in standby, that is 120 watt hours (Wh) per day, i.e. about one eighth of a kilowatt hour, which costs about 35 cents. So hardly anyone will get up from the sofa for 5 cents a day and press the switch on the TV, or turn off the WLAN router at night, or shut down the computer. Or is it? And how many watt hours could be saved daily in all households? Would this consideration influence your actions?

Modern lamps require little electricity, and yet it is worthwhile not to let them burn unnecessarily, for example when we are not in the room for a long time.

Apart from the fact that every device can have a high power consumption, a refrigerator is not regularly defrosted, the door seal is leaking, the washing machine is driven with too high temperatures and spin numbers, etc., there are still some unnecessary things that consume a lot of electricity: Tumble dryer, sauna, dehumidifier, pond pumps, aquarium heaters, terrace heaters, etc. The easiest way is to see to what extent you deviate from the average consumption in Germany and then think about what it is. If you are charging an electric car at home, you should see what can be attributed to it (either the car offers this evaluation or you use a separate electricity meter for this).

Vegan means refraining from fish, meat, milk, cheese and other animal foods. Unthinkable for many people, on the one hand because of the taste, and on the other hand because they consider it unhealthy. To the taste, it can be said: Among the extremely diverse vegan alternatives, something certainly tastes just as good or even better. We just have to try it - from vegan cheese to egg salad to burgers. Many celebrities and athletes are vegan. Vegan is booming. Regarding health, it must be said: Our early ancestors eat healthier than we eat today. There was mixed food with only little meat and fish and also little grain and instead more legumes. If you eat a vegan diet, you have to pay attention to two nutrients: vitamin B12 and unsaturated omega 3 fatty acids. B12 can be bought for sucking (or as an additive in foods that are no longer called organic). Omega 3 fatty acids are available in linseed and algae oil. After a few months vegan, a blood test can show whether there are deficiency symptoms. As a rule, vegans eat healthier and are fitter than others. What else does it bring: In addition to ethical reasons (keeping and killing animals), vegans help to prevent the deforestation of forests, because most areas in the world need the feed. In fact, we will not be able to feed the growing world population in the way we Germans. Vegans also prevent greenhouse gases from the methane emissions of cows, save enormous amounts of drinking water and prevent the pollution of soils, groundwater and waters. Hotels, pensions, restaurants should offer vegan alternatives, also like to inform about the advantages and find out in dialogue with the guests what is well received and what is not. A real paternalism will not work - rather the feeling of pride, at least partly doing something better.

Unlike the vegan diet, a vegetarian diet can also include milk, cheese or eggs. Vegetarian days are healthy, mean less animal husbandry and thus less consumption of land and water. We Germans consume more than three times more animal products, which according to the EAT-Lancet Commission would be healthy for us and the planet. Hotels, pensions, restaurants should offer vegan alternatives, also like to inform about the advantages and find out in dialogue with the guests what is well received and what is not. A real paternalism will not work - rather the feeling of pride, at least partly doing something better. We don't have to become vegans or vegetarians right away, but maybe just flexitarians.

Food from the region, from the weekly market and from the farm shop have not been transported far (there are of course also exceptions there) and strengthen the local economy. However, there are also inefficient short transport routes when vehicles with little load drive to the points of sale. E-mobility and cargo bikes can help here. Unfortunately, the regional is often also played out against the organic offer: regional, sprayed with pesticides food is not as good as regional organic food, and regional meat is not as good for the environment as the renunciation of meat.

Organic is extremely important for biodiversity. We have the greatest species extinction since the extinction of the dinosaurs and the consequences are greater than those of climate change. Pesticides and mineral fertilizers endanger our future. In addition, soils from organic farming usually store more carbon and thus help against the climate catastrophe. The counter-argument is often that the yields in organic farming are lower than in industrial agriculture and therefore more forests have to be cut down. This is true, for example, with cereals that are not unrestrictedly healthy. But if we eat less meat, waste less food and eat more healthy legumes, we have plenty of additional space available and can feed the entire world organically and even plant a little more forest. Organic is more expensive. But on the one hand, many costs can be saved by less meat and on the other hand, it can be bought and cooked intelligently …. of course, it is also to be questioned whether there must be such a low livelihood at all - environmental policy is also social policy.

Which is better - the organic apple from New Zealand or the sprayed apple from the region? Answer: both wrong. Organic food from the region means less transport and is therefore even better than organic food with wide transport.

Seasonal organic products in addition to regional organic products also have less energy expenditure for storage. In the respective months, other products are available seasonally, so that we can eat healthy and tasty all year round with little transport and storage effort with regard to a seasonal calendar.

Legumes are not only an alternative source of vegetable proter to animal products, but also extremely important for world nutrition. They bind nitrogen from the air in the soil and can achieve just as high yields in organic farming as in industrial agriculture. So we have to cut down fewer forests. In addition, legumes are healthier than cereals. Harari describes in Sapiens how we could probably get much older if we didn't eat so much cereal products. After all, legumes are important for bees and biodiversity. Lupine, for example, also grows in northern Germany and can be used for meat substitutes, yogurt, coffee substitutes, ice cream or even noodles.

Fortunately, tap water has long been a trend. There are drinking water dispensers in schools and the students have their drinking bottles with them, and managers also bring their drinking bottles to workshops. Many children do not even get used to the unhealthy sugar drinks. Tap water is more strictly controlled than bottled drinks and saves a lot of energy and packaging. Even with motorhomes or boats or in places with the smell of chlorine in the water, we can save a lot of money, energy and packaging through good and regularly exchanged filters.

Food is wasted from the field to the factories and transport routes to the throw away by us, the restaurants and the supermarkets. This ultimately means that more areas are needed for cultivation and thus forests are cut down and biodiversity is endangered with sprays and fertilizers. We can shop more specifically, throw away goods not only because of the best before date, save food in the household (e.g. freeze bananas or make durable spreads and soups from leftover vegetables yourself), save specifically rescued food (e.g. too small or wrinkled goods) and also donate leftover food in many places, e.g. to the food banks.

There are almost hostile prejudices against electric cars: child labor, coal power, risk of explosion, farmers are expropriated, fear of range, loss of value, etc. It is true: Like every car, electric cars are also a waste of raw materials and energy. But if car, then the electric car is the best solution, because gasoline and diesel perform even worse in all areas. Many studies or Statements by laymen make a mistake: The controversial lithium must not only be counted with its footprint from mining, but this must be reduced by the many times that lithium is recycled again and again in the decades. In addition, what few know: Gasoline contains almost the same amount of electrical energy on 100km for production and transport as it is needed in an electric car for the journey. E-cars would not have to be so expensive and batteries not so big - charging options are more important. Electricity at public charging stations is currently surprisingly expensive, although it would clearly be more important to add the costs of the climate catastrophe and air pollution to the gasoline and diesel price. http://www.imodeler.info/ro? key=Col-EWhyCbIR_KGGP7mXbLw Hydrogen and synthetic fuels in cars are nonsense. There are so-called memes fuelled by individual interests (keyword "Lex Porsche" https://www.cleanthinking.de/lex-porsche-lindner-wissing-e-fuels/), 'ego trolls', which are picked up by 'Troll-Lemmingen', who simply like to be against something and do not want to change. With both fuels, green electricity is first generated and then with loss of efficiency to hydrogen or e-fuel. For e-fuels, carbon is also missing - already today, few airlines that have started with it have a problem buying carbon on the market. Consideo has also gained important insights about hydrogen: https://www.consideo.com/files/consideo/pdfs/papers/eng/ConsideoPaper-BEM-Engl.pdf In companies, of course, electric cars are also associated with additional expenses. However, if the electricity itself is produced, the self-consumption of electricity can be maximized and the costs are even lower in the end.

We are used to the fact that everything is packed and we don't care much about the packaging. For some foods, the packaging is more expensive in the production than the content. Paying attention to the packaging sends a signal to manufacturers and retailers. Refills are an option as well. For food, there are so-called unpackaged shops or at least the possibility of using deposit containers (own step) or cotton bags brought along for loose vegetables and fruit. In basically all markets, we should have our own bags with us.

Consistently separating waste, including green waste, glass and paper, is not as self-evident as can be assumed. Many make little effort here and don't really know what belongs in which bin. The residual waste bin also costs the public sector a lot of money, while the recyclable and green waste bin are free of charge. But also special waste, such as batteries, incandescent lamps, electrical appliances, etc. must be disposed of properly. Hospitality businesses and events can place separating waste bins with information signs everywhere. In general, it is also possible that a sign indicates that the cleaners take over the separation for the guests. But better, the guests can do that.

Non-recycled paper is often cheaper, but means cutting of forests, contamination of water during production and a high energy requirement. Recycled paper for toilet paper, writing paper, packaging, envelopes, wrapping paper, etc. should be a matter of course today. But we have to pay attention to it and choose it. Recycled paper is also snow-white, but it should then not be bleached with chlorine but oxygen. A note on the menu can make you proud and contribute to corporate identity.

After unpacked and for drinks after the tap water, the best thing we can do is to buy our food in reusable containers. (By the way, there are also reusable shipping boxes for office supplies as well as some regional delivery services). Also ask whether the containers are transported empty throughout Germany, or whether North German beer flows into the empty bottle of Bavarian beer and vice versa. Next question, what energy does it cost to clean the containers. Composite packaging or cans that are easy to recycle are the better alternative in some studies. In such studies, it is necessary to look closely at what is being compared. Ultimately, it is important to close regional cycles. Next question, whether the containers should be made of glass or plastic - glass is recycled more often, plastic is lighter and means less energy during transport.

Many things are actually thrown away, although others could still do something with it. It is more convenient for us not to repair it than to have a stand at the flea market or to have to send it for little money. But the good feeling of doing the right thing motivates.

Surface sealing is a problem not only in growing civilizations, but also in Germany. We live on too much living space, are still building new streets and courtyard driveways and our terraces are also getting bigger and bigger. To specifically dispense with area, to build in height, water-permeable paving, green roofs (own point) and, weighing up all the advantages and disadvantages, to expand one's own house to the height in order to enable more people to live on the same sealed area, are valuable steps. By the way, an English lawn is ecologically not very valuable, for example, compared to a flower or clover meadow or a vegetable garden. Guest companies can systematically look at which areas do not have to be sealed and may be provided with flower meadows. An info sign can then make you proud.

In many places, moors, streams, etc. have been lost with the settlement and intensification of agriculture. Renaturalizing this often means an enormous gain for biodiversity, climate and also flood protection.

Insect hotels or just old, higher tree stumps and dead wood on the ground, nesting boxes and, if useful, bat boxes are great ways to maximize biodiversity in your own environment. School classes can also participate here.

It is hard to believe that the future of our diet depends on the use of pesticides and their influence on insects that have to pollinate our plants. Many pollinators are threatened with extinction and in addition to the purchase of organic, we can offer these insects flowers on our areas. In fact, some plants are neither bee-nor bird-friendly. On the other hand, fruit trees and most vegetables are already great opportunities to promote bees, bumblebees, etc. At the flower meadows there are one- and multi-year-olds.

The awareness of nature-friendly outdoor lighting has increased significantly, there are already so-called star cities that do not want to "pollute" the view of the night sky with light. The street lamps are about whether they shine into the trees or on the street and with which light color they attract how many insects/moths. But we can also do a lot wrong in our gardens, with too bright light, motion detectors that disturb hedgehogs, or those cheap solar lamps that are already hazardous waste with the purchase and do not let the garden get dark in the first place.

Road salt is convenient and safe, but a considerable burden for pets, the trees and the surface water. Replacing this with split means more effort, but it's worth it.

Sidewalks can be kept mechanically or by flames weed-free or the herb can also grow sometimes. The beds can be kept mechanically herb-free or laid out from the outset in such a way that herb does not matter. Pesticides are one of the main causes of species extinction and water pollution.

Many people who earn above average can only do this because others earn below average. The gap between rich and poor is getting bigger and bigger. Consumers complain about cheap wages, but the price increase by 50 cents is rarely accepted. What we deserve is not, as liberals or neoliberals like to think, just a question of diligence. It is the product (!) Out of diligence, skill and the right framework conditions. Anyone who knows many talented and hard-working people who are simply not lucky develops empathy and is willing to pay more, even if it is through tips. Companies can set an example in the case of remuneration, in particular for less well-paid activities within the scope of their possibilities.

Volunteering, whether at the fire brigade, in the sports club or the help in the neighborhood, is enormously important for togetherness and society.

Globally, conventional cotton is an environmental problem due to the use of sprays and the high water consumption. In addition, the textile factories poison entire rivers and exploit people during conventional dyeing. In addition to ecological cotton, there are other natural fibers with sometimes much less damage to the environment. In the case of virgin wool, attention must be paid to the certification, which excludes animal suffering. By the way, there is now also outdoor clothing made of densely woven organic cotton as an alternative to the plastic fibers. Plastic fibers always allow microplastics to enter the wastewater during washing and microplastics in the environment may lead to multi-resistant super germs - a long history. With the points for clothing, if you do not buy conventional cotton, but sometimes choose recycled and sometimes organic cotton, you can give a full 3 points for both. By the way, organic is also possible with curtains, tablecloths and bed linen!!!

This is about workwear or, for example, in the tourism sector clothing with advertising. Even large, conventional clothing stores sometimes take back old clothes and promise to produce new yarns from them. Often the problem is the quality of short-lived clothing, which is then difficult to recycle and yet ends up in the waste incineration plant or on the dump in developing countries.

Many furniture cannot stand being moved or even disassembled and reassembled. They are primarily cheap and the business model is that after a few years we want to buy new furniture. Looking at how valuable the furniture is and then being able to repair it takes us a whole lot further on the way to a better world. It is also amazing what good pieces there are on the used market.

Ecological furniture is made of natural materials without questionable chemical additives or varnishes. They are usually very expensive, but also last many decades and can usually be easily repaired and renovated.

Leaf vacuums and blowsers are even worse than the idea of mowing small lawns with a large lawn mowing tractor at all and then for hours. Boys with toys. The leaf vacuums and blowers emit noise and ultrafine particles and harm the soil organisms more than rakes or brooms.

Many devices from vacuum cleaners to cordless screwdrivers to TVs are amazingly inexpensive today. Relying on valuable devices that last a long time, or even buying used devices, helps to save raw materials and energy.

Unfortunately, many devices can no longer be repaired at all, for example if the control unit breaks down from the washing machine and costs more than a new washing machine. And yet there are workshops that also repair mobile phones, washing machines, lawn mowers, etc. - and even if it is as expensive as a new device, it is the good feeling of having done something for a better world again.

Returns have become a big problem - many returns are simply burned because the logistics are more expensive than the goods. Especially with clothing, we should research for detailed size specifications so that the clothing also fits. Simply ordering three sizes and of course sending two back is a waste of energy and resources. But other products would not have to be returned if we researched better beforehand whether they meet our expectations.

Transparency in the supply chain should not only strive for the larger companies committed to doing so. This also includes the knowledge of the working conditions under which people work. Child labor and slavery are still common and inhuman working conditions and hunger wages are often at the beginning of the supply chain in the mines and factories abroad. Here, a company can exert pressure and remunerate better accordingly.

Firecrackers and fireworks are a problem in every respect: for the animal world, the environment and the people who produce them. The ultrafine particles pollution is horrendous. And all this only because people (mostly men) hope for attention and admiration about this.

This does not refer to the skater track or the artificial turf sports field, but motorsport, skiing on artificially snowy slopes, kiting in bird protection areas, sailboats with biocides on the underwater ship, golfing with high use of water and pesticides, quad rides into nature, skydiving, etc. Of course, these hobbies are fun, which is why it is rewarded if we actively offer the more environmentally friendly alternatives here and thus achieve a rethink among our guests.

Flyers and links on the websites can draw attention to sustainable offers - or sustainable offers are made themselves.