Pittsburgh installs first energy-efficient LED street lights - NewsFlash - PennLive.com: "Pittsburgh is installing the first energy-efficient LED street lights in southwestern Pennsylvania.The TV interview on last night's news made us giggle.
The new street lights are 'clean.' They can be simply put into the trash without ramifications and nasty issues later. Meanwhile, the old and existing street lights have a lot of mercury in them and are quite toxic.
http://en.wikipedia.org/wiki/Mercury_toxicity
So, the city has plenty of traffic lights that are NOT able
to be thrown away and recycled.
It might make sense to keep the lights right where they are so that they are not going into a dump and contaminate.
Sometimes, upgrades are expensive.
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