Most likely your events need electricity. Your country has most likely real green electricity providers, as they purchase or implement the appropriate capacities of green electricity for each customer. The other electricity providers only offer an electricity mix. The share of green electricity is sold more expensively as an eco-tariff to some customers, while the other customers theoretically only receive the shares of gas, coal, etc. http://www.imodeler.info/ro?key=CF8Gsu47BnYHLi5NHUWXKVA

On many events there are refrigirators and more and more even dishwashers in use. It is always a consideration whether the continued 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.

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

Many events use a lot of light even after the event when the visitors are gone - for security reasons. Motion detectors would then make sense.

Terrace heaters, artificial ice skating areas, air filled sculptures, etc. are just some example of very energy consuming possible attractions on events. It shouldn't be just the money they cost but the total amount of energy per visitor and its associated greenhouse gas emissions that count.

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. Events should offer vegan alternatives, also like to inform about the advantages and find out in dialogue with the visitors 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. Events should offer vegan alternatives, also like to inform about the advantages and find out in dialogue with the visitors 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 his bestseller "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. Outdoor events need to be aware of the water hoses that have to meet the standards for drinking water.

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 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.

Guests can be encouraged to arrive without a car. Already on the website, guest companies and organizers can advertise it, show public transport, make combined offers, offer a shuttle service to the train station, etc.

A premium SUV can weigh well over 2.5 tons and consumes more than twice as economical vehicles. Van, buses are similar - but sometimes have an authorization, for example as then actually used 7-seaters or for regular transports. For rare transports, there should be rental cars nearby or trailers. There is a global trend towards SUVs. These unconsciously give us the feeling of robustness, of getting through. They reinforce the so-called attribution or distinction need. We think we are the great car. At the same time, however, the same applies: Small cars are not necessarily more economical than larger cars - a Renault ZOE apparently consumes more than a Tesla Model Y. But larger cars consume more raw materials in the end. There is the expression SUV shame when you behave selfishly recklessly towards future generations through SUVs, comparable to flight shame.

What has recently been a successful model in some countries and cities is still a problem in others: to give cyclists priority over car traffic. The willingness to ride a bike, even in bad weather, is higher than ever. E-cargo bicycles make it possible to at least do without the second car. An event can do a lot from a safe bicycle shelter with charging possibility (extra step) to rental bicycles on park and ride places.

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. 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 visitors can do that.

Saving paper helps to protect forests - recycling paper also ultimately means more demand for fresh pulp from trees. We don't even need to print many things in the first place, but can save them on devices that we already have. For internal processes but also for dialogue with customers, digital forms should continue to prevail. So the exhibitors etc. are welcome to ask if they need a paper version of the invoice.

For events it makes perfect sence to use reusable glasses and dishes. Pant on glasses and dishes combined with mobile dishwashers for rent are a solution. After unpacked and for drinks after the tap water, the best thing we can do is to buy our food in reusable containers. Also ask whether the containers are transported for example empty throughout Germany, or whether North German beer flows into the empty bottle of Bavarian beer and vice versa. Next question, what energy and water does it cost to clean the containers. Composite packaging or cans that are easy to recycle are the better alternative according to some studies. However, 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.

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.

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.

If possible limit the noice emissions from you event

Fireworks harm animals and emit huge amounts of fine particles.

The protection of the environment as well as social topics can be a theme of an event.