Looking at Earth from space will display a breathtaking show of brightly-shining night lights which are guaranteed to impress anyone. However, the more beautiful they look from up there, the more dangerous they are. As cities expand, night becomes less dark, and this can have terrible consequences on our environment.
Night lights have become brighter
Year after year, Earth becomes brighter during night. While you might see it as a beautiful display of glimmers, the show is actually extremely bad for the environment. The quick expansion of cities affects night, which starts feeling less like a night and more like a darker day. There’s no need to mention this greatly affects animals and plants, which need a period of darkness and rest.
To assess how acute this problem is, NASA used a radiometer to discover how bright are these night lights. This device also helped the scientists see how this brightness changed over time. Rich countries have become more careful with the environment, and switched from regular to LED lights, which are more eco-friendly.
Nocturnal animals have a lot to suffer because of artificial lights
Therefore, NASA expected these countries to have turned less bright. Unfortunately, they noticed no difference, while some countries appeared even brighter than before. What is even more worrying is the fact that even poorer countries saw a development of night lights. There have been only two countries in the entire world with a decrease in the light intensity, Syria and Yemen, which are currently fighting wars.
If the night becomes less dark, animals and plants have a lot to suffer. Nocturnal birds can no longer migrate properly, the activity of nocturnal insects gets disturbed and they aren’t pollinating properly, while trees from extremely bright areas bloom earlier than they should. Therefore, scientists call for a reduction of night lights before it’s too late.
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