The advent of electric light and its collectivization in the 20th century marked a before and after. Over time, this lighting has been developed, often with an aesthetic rather than functionality, as it is associated with modernity today. But this has a direct impact on ecosystems, among other things, as it exposes a large number of animals whose only defense is not seen.
Therefore, it is clear that any human action has a direct environmental reflection. Therefore, on the one hand, there are those who argue that the presence of artificial light is always a source of pollution, but limit it to light emissions that can be avoided and the rest as interference. .
In an ideal world, it would be sufficient to live at night with the light offered by the moon. Moreover, humankind has certainly in its evolution loss of night vision ability due to adaptation to artificial light. However, in the human eye, unlike other animals such as dogs or cats, there is no tissue layer called the tapetum lucidum, which acts as a kind of mirror, reflects light rays, increases the visual capacity and causes that brightness in the eye. eyes, the eyes they have in the dark.
Then, Humans need enlightenment. Why are you wasting it now? The light we produce increases the brightness of the night sky, directly emits light emissions to the atmosphere, increases energy use, increases greenhouse gas emissions, pollutes the air, changes chemical reactions and directly affects all nighttime ecosystems that can exist around us. This creates ideal niches for both unevenly growing plants and animals, for some animals to the detriment of others, often resulting in a general imbalance and the emergence of pests. We must not forget that one of the most affected animals are insects, which are hypnotized by light.
Therefore, it is important to do something responsible use of light for the planetfor the animals and ourselves. This could be a matter of life and death.