What measures can we take to reduce light pollution?

Light pollution

The excessive dispersion of light emitted by artificial sources into the atmosphere, known as light pollution, intensifies the brightness of the night sky and obscures the visibility of stars, among other issues. Light pollution has more important implications than is commonly recognized. While it is true that organisms have adapted their biological rhythms to astronomical cycles, such as the natural alternation between day and night, it seems that humans have once again upset this balance and endangered these biorhythms, effectively erasing the concept. at night. It is evident that the Light pollution It profoundly affects all living beings, including ourselves.

Therefore, in this article we are going to see what measures we can take to reduce light pollution and what consequences it has.

Light pollution what is it

light bulbs in the streets

Light pollution refers to the presence of excessive or intrusive artificial light that disrupts the natural darkness of the night sky. The scattering of excess light emitted by artificial light sources into the atmosphere is what constitutes light pollution. As a result, the luminosity of the night sky increases. This increase in brightness is a direct result of the reflection and bending of light when it interacts with particles present in our atmosphere.

The decreased visibility of celestial bodies in the night sky is usually due to poor quality lighting, commonly known as light pollution.

The issue of light pollution covers a series of problems that arise from the improper use of light artificial, often for unnecessary purposes, resulting in both energy and economic waste.

While it is undeniable that lighting offers numerous benefits, including improving safety, facilitating traffic, and addressing specific locations, it is important to recognize the significant drawbacks and expenses associated with it. The goal is not to eradicate these lighting sources, but to achieve a harmonious balance that prioritizes the preservation of our environment.

Therefore, It is reasonable to assume that areas with excessive artificial lighting, like bustling metropolitan areas, are more likely to experience amplified light pollution. This can be attributed to the fact that the implementation of these lights is mainly driven by aesthetic considerations rather than practicality, often neglecting the possible consequences they may entail.

Measures to reduce light pollution

way to light the street

Illuminate from top to bottom

It is necessary to properly orient the light sources so that they illuminate only the necessary areas, avoiding the dispersion of light towards the sky and unwanted spaces.

Use low consumption lights

Another measure to reduce light pollution is to use efficient lighting technologies, such as LED lights of appropriate spectrum and with intensity control, can significantly reduce the amount of light emitted to the sky and to the sides, without compromising safety or visibility.

Use timers

You can also implement automatic shutdown or time control systems for lights in places such as streets, buildings and parks, so that Reduce lighting when it is not necessary, such as during the early morning hours or in areas with little activity.

Put solar lamps outside

Solar lamps are a good alternative to reduce energy consumption and light pollution. These lamps gather solar energy during the day and emit a much smaller light at night. This is not enough to turn people around at night, but without causing light pollution.

Choose white and cold colors for light

You can have a sustainable urban design. For it, lighting considerations must be integrated into urban and architectural design, favoring the use of designs that minimize the emission of light towards the sky and promote the efficient use of energy.

Consequences of light pollution

pollution in cities

The main and immediate impact of light pollution is the deterioration of the night sky and its decreased visibility. At high levels, the night sky takes on a reddish or orange tint. However, the repercussions of this particular form of pollution go beyond a single consequence. There are several others that deserve attention, including the following:

Economic consequences

The economic repercussions of light pollution go beyond the energy wasted on it. It also involves the exploitation of the natural resources necessary to sustain it, once again placing the burden on nature to satisfy our desires. The production process is responsible for generating greater amounts of waste, causing climate changes as a result of excessive energy consumption.

Alters the rhythm of the species

By altering the inherent rhythms of numerous species, it induces changes in their activity and rest patterns. This alteration of biorhythms It can cause various symptoms such as fatigue, insomnia and anxiety. Furthermore, it has a profound impact on the delicate balance of the food chains that nocturnal creatures are a part of, as it impairs their hunting abilities and subsequently affects their diet.

Glare and visual fatigue

Prolonged exposure to bright light sources at night can cause glare and eye strain in people, which It can impair vision and increase the risk of accidents, especially when driving.

Impact on human health

Light pollution can also have negative effects on human health, including sleep disorders, disruptions in circadian rhythms, increased stress, and risk of diseases such as obesity, diabetes, and mood disorders.

Deterioration of the night sky

The excessive brightness of artificial lights in urban areas makes it difficult to observe the night sky and affects the quality of amateur and professional astronomy. Besides, reduces the visibility of stars, planets and other celestial objects, thus diminishing cultural and spiritual connection that many people have with the cosmos.

Waste of energy

Poorly designed and excessive lighting leads to significant waste of energy, as much of the emitted light is scattered in unwanted directions instead of illuminating useful areas. This contributes to the increase in energy demand and the emission of greenhouse gases.

I hope that with this information you can learn more about what measures can be taken to reduce light pollution.

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