科学家：地球的夜晚太亮 这其实很危险
<p>一直以来我们都很关注大气污染、废弃物污染，但是却忽略了一种同样很危险的污染——光污染。科学家指出，世界各地的夜晚都变得越来越亮，如果再持续下去，我们将很快看不到美丽的星空。</p><p><span word="The">The</span> <span word="world">world</span>’<span word="s">s</span> <span word="nights">nights</span> <span word="are">are</span> <span word="getting">getting</span> <span word="alarmingly">alarmingly</span> <span word="brighter">brighter</span> – <span word="bad">bad</span> <span word="news">news</span> <span word="for">for</span> <span word="all">all</span> <span word="sorts">sorts</span> <span word="of">of</span> <span word="creatures">creatures</span>, <span word="humans">humans</span> <span word="included">included</span> – <span word="as">as</span> <span word="light">light</span> <span word="pollution">pollution</span> <span word="encroaches">encroaches</span> <span word="on">on</span> <span word="darkness">darkness</span> <span word="almost">almost</span> <span word="everywhere">everywhere</span>.</p><p>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。</p><p>什么是光污染？</p><p>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。</p><p><span word="Satellite">Satellite</span> <span word="observations">observations</span> <span word="made">made</span> <span word="by">by</span> <span word="researchers">researchers</span> <span word="during">during</span> <span word="five">five</span> <span word="consecutive">consecutive</span> <span word="Octobers">Octobers</span> <span word="show">show</span> <span word="Earth">Earth</span>’<span word="s">s</span> <span word="artificially">artificially</span> <span word="lit">lit</span> <span word="outdoor">outdoor</span> <span word="area">area</span> <span word="grew">grew</span> <span word="by">by</span> 2% <span word="a">a</span> <span word="year">year</span> <span word="from">from</span> 2017 <span word="to">to</span> 2016. <span word="So">So</span> <span word="did">did</span> <span word="nighttime">nighttime</span> <span word="brightness">brightness</span>.</p><p>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。</p><p><span word="Light">Light</span> <span word="pollution">pollution</span> <span word="was">was</span> <span word="even">even</span> <span word="worse">worse</span> <span word="than">than</span> <span word="that">that</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="German">German</span>-<span word="led">led</span> <span word="team">team</span>, <span word="because">because</span> <span word="the">the</span> <span word="sensor">sensor</span> <span word="used">used</span> <span word="cannot">cannot</span> <span word="detect">detect</span> <span word="some">some</span> <span word="of">of</span> <span word="the">the</span> <span word="LED">LED</span> <span word="lighting">lighting</span> <span word="that">that</span> <span word="is">is</span> <span word="becoming">becoming</span> <span word="more">more</span> <span word="widespread">widespread</span>, <span word="specifically">specifically</span> <span word="blue">blue</span> <span word="light">light</span>.</p><p>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<span word="LED">LED</span>照明灯，尤其是蓝光，发出的光线。如今人们对<span word="LED">LED</span>照明的应用日益普遍。</p>
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