The world’s nights are getting alarmingly brighter – bad news for all sorts of creatures, humans included – as light pollution encroaches on darkness almost everywhere.
地球的夜晚变得越来越亮,这种明亮让人不安——事实上,这对于包括人类在内的各种生物都是坏消息——因为光污染正在一点一点地蚕食掉各个角落的黑暗。
什么是光污染?
光污染是继废气、废水、废渣和噪声等污染之后的一种新的环境污染源,主要包括白亮污染、人工白昼污染和彩光污染。
Satellite observations made by researchers during five consecutive Octobers show Earth’s artificially lit outdoor area grew by 2% a year from 2017 to 2016. So did nighttime brightness.
研究人员连续五年在十月份观测到的卫星数据显示,2017年到2016年间,地球上有人工照明的室外面积每年增加2%,夜间亮度也随之增加。
Light pollution was even worse than that, according to the German-led team, because the sensor used cannot detect some of the LED lighting that is becoming more widespread, specifically blue light.
由德国科学家带领的这一研究团队指出,光污染实际上比数据显示的更糟,因为卫星无法探测到一些LED照明灯,尤其是蓝光,发出的光线。如今人们对LED照明的应用日益普遍。
The observations indicate stable levels of night light in the US, the Netherlands, Spain and Italy. But light pollution is almost certainly on the rise in those countries given this elusive blue light, according to Christopher Kyba of the GFZ German research centre for geosciences and the lead author of the study published in Science Advances.
【科学家:地球的夜晚太亮 这其实很危险】相关文章:
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2020-09-15
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