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9.3.3. Light pollution

Light pollution

Since artificial light affects ecosystems, all artificial light could be considered light pollution. But we usually refer to light pollution to refer to artificial light emissions that emit in directions that are not necessary to illuminate and are therefore inefficient.

A glow is produced when artificial light that is lost towards the sky is reflected in the air. Inefficient street lighting and commercial lights create a huge globe of light around cities.

Among the consequences of light pollution are fatigue, insomnia, nervousness, loss of concentration in humans, changes in body cycles, changes in the migration of birds and difficulty in seeing and enjoying the stars in the night sky.

Contaminación lumínica

Lamppost illuminating the sky in the Reina Victoria neighborhood of Huelva.


         

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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.