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|I Am Skooter|
So here's us, on the raggedy edge.
LED lights are wonderful: bright, long lasting, even more energy efficient than compact fluorescent bulbs (and they don’t require mercury.)
Of course they also don’t give off much heat, and that fact has apparently been causing a bit of trouble with traffic signals in snowier parts of the country.
LED Signal’s Seen as Environmental Boon and Potential Hazard - NYTimes.com
The new lighting is part of a fast-growing trend in environmentalism. LED bulbs use less energy, last longer and are more visible than their predecessors. They are also known to require less maintenance. But they do not emit nearly as much heat as conventional bulbs, allowing snow and ice to accumulate more easily in certain conditions.
It’s always interesting to see the unintended consequences of a new technology. I’m not sure that anybody could have thought this problem through enough to anticipate the problem.