"[T]he presence of [artificial light at night] can disrupt the proper functioning of not only humans but all organisms on Earth that have evolved in conditions of alternating day and night. Cities are the primary source of LP, and the ever-increasing global urbanization makes LP one of the fastest-growing threats to our civilization. It is particularly dangerous because public awareness of its existence is exceptionally weak."

https://www.mdpi.com/2673-4672/6/1/11

#ALAN #LightPollution #DarkSkies #Pollution #Environment

@JohnBarentine

I have our (static) outdoor lights on schedules: they come on at sunset and turn off at midnight. The whole reason they're on
that schedule is that, when we switched away from incandescents to CFLs, it took the CFLs forever to come up to necessary brightness when we needed to take our dogs outside. The LEDs that replaced them are quicker, but I've left them on the previously-established schedule-basis.

Our porch-lights are motion-activated. So, they only come on when there's movement present and turn themselves off a minuter or two after the movement ceases.

Not sure how to further-reduce our household's light-pollution footprint.