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. Companies need the competence to weigh up the right time for a new purchase of devices, but also the determination to then purchase the most sustainable and not only cheapest devices.

LED 'light bulbs' are now available for really all lamps, even with pleasantly warm light colors. Also, think about the lights outside - are they LED as well?

Standby power consumption is often reminded and extrapolated. For example, if a screen consumes 5 watts in standby, that is 120 watt hours (Wh) per day, i.e. about one eighth of a kilowatt hour (35 cents/kWh). Companies can quite easily calculate for themselves what savings potential all their computers, screens, beamers and even routers have if they do not use StandBy.

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. Corridors, toilet rooms, cellars often have the light burning unnecessarily. In some indoor and outdoor areas, companies also sometimes have the light on too long or too early.

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: In the company, these can be exaggerated light installations, electric bollards, and much more.

We can use rainwater at least for garden irrigation in the case of unproblematic materials of the roof. With significantly more effort also for washing machine and toilet flushing. Even if it takes quite a long time economically before it's worth it, it's a good thing.

In most study rooms it is too warm in winter - we walk around in a T-shirt instead of putting on thick sweaters and a cardigan. The energy-saving potential is considerable. When lowering the temperature, attention must be paid to the indoor climate and the possible risk of mold formation. This depends above all on the humidity. Companies also have to observe workplace regulations.

Air conditioning systems are also gaining in importance in temperate latitudes. Intelligent construction and ventilation and the use of thermal protection roller blinds can avoid these power guzzlers. In warm regions, a corresponding education of the guests can take place. Often a fan is also useful.

Intelligent ventilation does not mean too late and not too long. It is too late when we get tired when the air is used up, get a headache and the humidity becomes too high. It is too long when the air has already been replaced and is cool, but we also ventilate the materials (walls, furniture) even longer. Heat ultimately means that things or air vibrate. When the air is exchanged, but the objects and walls are still vibrating, the fresh air is quickly heated. Even if the walls get cold, mold can form on them and we need expensive heating energy to make everything vibrate again. By the way, CO2 measuring devices help to ventilate in time and not for too long. However, these should not be a useless gadget, but perhaps used for practice one after the other in the rooms and gladly lent. A nice game is the competition, how good the sense of the people in the room is to ventilate in time and not too long. Companies in particular have the potential to keep the doors in the entrance area not too far and not too long open.

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 in the canteen or at the kiosk or at company events is of course more expensive - but if it is not exemplified somewhere, what do we expect in the private sector.

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. Organic in the canteen or at the kiosk or at events is of course more expensive - but if it is not exemplified somewhere, what do we expect in the private sector. Sometimes a direct delivery from providers from the region is a way to save costs.

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. Companies can set up water dispensers - if necessary also work with filters, for example to remove chlorine odors.

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. Canteens and kiosks and also events can query the demand in advance and thus prevent food from being thrown away. A dish can also be deliberately offered the next day, which advertises the utilization of the leftovers from the previous day.

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.

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.

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. A company can avoid garbage here - even if throwing it away probably meant little effort.

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.

At Fair-Trade, we usually think of the label of the same name - which is no longer in disrepute. But there are also other labels - some rather greenwashing, some quite trying to do better. Fair is not always the same as organic and organic is not always fair (but some labels combine both). The importance is immense: fair working conditions in the world ensure less migration, more climate protection and a more peaceful world. Extremely remarkable is the background of chocolate and the connection between child slavery (!) And the common products from Nutella to children's chocolate to the Mars bar: https://edition.cnn.com/world/freedom-project Companies and events can therefore be pioneers for a better world themselves here in the food or in the work clothes or the hand-sewn football.

Organic cleaning agents can be found in all supermarkets and drugstores. An essential feature is biodegradability and, of course, the vegetable raw materials as an alternative to petroleum-based raw materials. Even if conventional cleaning agents are classified as safe, organic cleaning agents are certainly safer and are less harmful to health and also burden the sewage treatment plants less.