Artificial lighting at night is contributing to an alarming increase in light pollution, both in amount and in brightness, affecting places all over the world, a new study has found.
원문출처 : http://www.cnn.com/2017/11/23/health/light-pollution-increase-study/index.html
원문출처 : http://www.cnn.com/2017/11/23/health/light-pollution-increase-study/index.html