MIAMI: They were supposed to bring about an energy revolution, but the popularity of LED lights is driving an increase in light pollution worldwide -- with dire consequences for human and animal health, researchers said on Wednesday.
The study, in the journal Science Advances, is based on satellite data showing that the Earth’s night is getting brighter, and artificially lit outdoor surfaces grew at a pace of 2.2 percent per year from 2012 to 2016.
Experts say that’s a problem, because nighttime lights are known to disrupt our body clocks and raise the risks of cancer, diabetes and depression. As for animals, these lights can kill -- whether by attracting insects or disorienting migrating birds or sea turtles.
The issue isn’t just the LED lights themselves, which are more efficient because they need far less electricity to provide the same amount of light, explained lead author Chris Kyba, a physicist at the German Research Center for Geosciences. Rather, it’s that people keep installing more and more lights, he told reporters on a conference call to discuss the research.
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