In a bad light

According to the scientists, the transition towards white and blue-rich light radiation is eroding the natural nighttime cycles across the continent.It disturbs the circadian day-and-night rhythm of living organisms, including humans, with negative health effects on species and whole ecosystems.

The study focuses on three major negative impacts: the suppression of melatonin, the phototaxic response of insects and bats, and the visibility of stars in the night sky.

“When we turn the streetlights on, we deprive our body of the hormone melatonin and disrupt our natural sleep pattern,” explains Alejandro.