I have to admit, I actually like the orange glow of high-pressure sodium lighting (the most common street and highway lighting in American cities).  Flying over the country at night, you can see large cities and small towns from above, glowing like orange circuit boards.  As LEDs become cheaper and easier to install, our cities may become whiter and brighter at night.

But won’t we miss this, just a little bit?

Our old orange-lit world

Our old orange-lit world

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