Lights in Phoenix are in the process of changing to LEDs. A public comment period ended on June 30 that gave residents the chance to weigh in on whether a 4000 Kelvin bulb or a 3000 Kelvin bulb would illuminate better and be cost and energy effective. The respondents split almost down the middle.
Barentine said the International Dark Skies Association is not opposed to LED lighting. He advised the city research the lighting options because some places have updated lights only to get complaints from residents about the lighting being too sterile or hospital-like.
"We're not necessarily going to come back to a point where you can see the Milky Way from downtown Phoenix," Barentine said. "But at the same time, I don't think the right thing to do is to simply accept that living in a heavily light-polluted environment...is a natural consequence of living in a city."