Madison Wisconsin discovers that LED traffic lights don’t generate enough heat to melt snow. That’s been going on here in Greenwich ever since we switched. Check it out the next snowstorm. The lights get buried under snow and are reduced to, at best, a faint glowing.
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I’m glad that they were completely tested before put into actual use. Maybe they thought that with the advent of Global Warming, there couldn’t be any more snow. Science marches on.