At night, scan the horizon for artificial light sources, such as fires and streetlights, then walk toward the glow of light pollution.

夜间，仔细眺望地平线，寻找诸如火和路灯之类的人造光源，然后朝光污染造成的光亮走。

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At night scan the horizon for artificial light sources such as fires and streetlights, then walk toward the glow of light pollution.

晚上，扫视地平线，寻找像火和街灯的人工光源，然后朝发光的光污染方向走。

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Light pollution, or "sky glow", is the glow you can see at night above cities and towns.

光污染，也称“人工白昼”，在夜晚的城镇上空均可见到这种发光现象。

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At night, billboards spew light pollution, despoiling the view of the stars.

WSJ: Tech's New Frontier...In Our Dreams

In domestic news, air pollution readings rose in Beijing last night despite fewer fireworks celebrations and improved weather conditions earlier in the week, The Beijing News reports.

BBC: China media: Wukan frustration

We humans are subject to hyperbolic discounting, not taking full account of long distant future costs for current pleasures, sometimes those running the public health system really do know more than us, there are externalities associated with these behaviours (late night drunks, passive smoking and the visual pollution of someone 300 lbs overweight perhaps).

FORBES: Alcohol, Obesity and Smoking Do Not Cost Health Care Systems Money