Light provides a feeling of security, it helps people to find their way home in the dark, and can also create a special atmosphere, especially at Christmas. But artificial light does not only have advantages, especially if it is used unnecessarily, i.e. if it is not correctly oriented or if it is too blinding. This is what is referred to as light pollution.
A problem that has increased sharply all over the world over the last 20 years, and which also affects Luxembourg. Stargazers can no longer find many dark areas where they can admire a starry sky without being disturbed. According to recent studies, 83% of the world’s population is affected by light pollution. One third of humans can no longer see the Milky Way with the naked eye.
But light pollution can also have a negative influence on humans and animals. Sleep disturbances occur when there is too much artificial light and the human day/night rhythm is disturbed. Nocturnal animals are also particularly at risk from light pollution, especially insects, for which it is the second most common cause of death after pesticides.
Video report in Luxembourgish:
It is not only street lighting that is responsible for this light pollution. Businesses and private individuals are also responsible. In other words: everyone contributes to this form of pollution and each one of us can help to make sure that this problem is no longer as serious. The Ministry of the Environment acknowledged the problem as early as 2018 and has drawn up a guide with simple advice on how to avoid light pollution for the benefit of people and animals.
The report (in Luxembourgish):
