In the past few years, the popularity of LED bulbs has soared. They have significant benefits over incandescent bulbs (which are much less efficient) and fluorescent bulbs (which contain toxic mercury). Regrettably, a new study shows that this product, which should have been part of the energy revolution, is associated with increasing light pollution.
Recently, researchers published an analysis report on satellite data in the journal Science Progress. Studies have shown that more artificial light illuminates the night sky of the Earth. Between 2012 and 2016, the outdoor surface illuminated by the bulb grew at a rate of 2.2% per year.
The researchers concluded that LED bulbs are causing global problems, with reports that light pollution is increasing in 79 countries, compared with only 16 countries. In 39 countries, light pollution remained stable during the study period.LED bulbs are adding light pollution because they require less power to make the same amount of light, so people are installing more and more lights. “We will light up things that we didn’t light up before, such as bicycle lanes on highways outside the park or outside the city, which used to be unlit,†said lead author of the study, Chris Kyba, physicist at the German Earth Science Research Center. Say.
The unexpected behavioral effects of more and more efficient technologies are called “rebound effectsâ€, and this effect also appears in energy-efficient cars. If someone chooses to buy a more efficient car, they may have more choices.
This is not just a question of energy use. Light pollution can have serious and lasting effects on human and animal populations. Light pollution is associated with circadian rhythms, depression, diabetes and even cancer. For animals, light can interfere with migration, attract insects, and can be fatal.
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