These Energy-Saving Bulbs Are Making One Pollutant Much Worse
Though energy-efficient, bright rays from LEDs are contributing to a host of human and animal problems.
As people across the globe are switching to LED lights in an effort to save energy and money, they may be making another problem worse.
A global study led by Christopher Kyba from the GFZ German Research Centre for Geoscience, the results of which were published in Science Advances, found that the amount of artificial light coming from Earth’s surface at night has increased in radiance and extent by 2 percent every year for the past four years—driven by the rapid adoption of bright LEDs and development.
Scientists observed light pollution by mounting a radiometer designed especially for nighttime lights to a NOAA satellite that orbited the Earth for four years. They found that the fastest increase in