A (Dimming) City of Light | Scientific American
The French are taking a stand against light pollution. Starting this summer, most non-residential buildings in the country will have to shut off their lights at night in order to “reduce the print of artificial lighting on the nocturnal environment.”
According to France’s environment minister, Delphine Batho, this shift will reduce total annual energy consumption by the equivalent of 750,000 households. But, the main motivation behind the new decree is public health. According to Ms. Batho’s statement, artificial light can cause “significant disruptions on ecosystems” by disturbing sleep and migration patterns.