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Hong Kong light pollution 'one of world's worst'

March 20, 2013 06:46
Hong Kong is one of the world's worst cities for light pollution with night skies around 1,000 times brighter than globally accepted levels, researchers said Wednesday ahead of this year's Earth Hour event. A study by Hong Kong University found that brightness levels in the southern Chinese city's popular shopping district of Tsim Sha Tsui were 1,200 times greater than the international dark sky standard -- a measurement void of manmade light.

Canadians create 'most energy-efficient' bulb

February 6, 2013 18:31
A trio of Canadians claimed Wednesday to have invented the world's most energy-efficient bulb: a 12-watt LED light that shines as bright as a 100-watt incandescent one. Product developer Gimmy Chu told AFP the NanoLight design consists of a circuit board dotted with LED lights and folded into the shape of a bulb that plugs into a regular light fixture.

France to turn off office and shop lights at night

January 30, 2013 07:15
PARIS, Jan 30 (Reuters) - French shops and office buildings will have to turn off their lights at night to save energy and reduce light pollution, the French environment ministry said on Wednesday. From July 1, all non-residential buildings will have to switch off interior lights one hour after the last worker leaves the premises. All exterior and shop window lighting will have to be turned off by 1 am. Local authorities will be able to allow exceptions for Christmas lighting and other local events.
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