The Meaning of the Loss of Darkness: ‘For Earth’s first 4 billion years of existence, light and dark followed a predictable 24-hour cycle. Across an ever-increasing amount of Earth’s surface, that’s no longer the case. With the advent of artificial lighting came the ability to transform night — inside buildings, under streetlights and neon signs, and in those vast areas where night’s simply not so dark as it used to be.
For journalist Paul Bogard, author of The End of Night: Searching for Darkness in an Age of Artificial Light, one such place his family’s lakeside camp in rural Minnesota. Thirty years ago the nights were pitch-black, the starscapes incandescent. Now there’s a glow at the edge of the horizon, a growing dullness to the stars.“That firsthand experience of a child, standing out on a dock and staring at the Milky Way, stays with you,” said Bogard. “That’s one of the biggest things we’re losing, or have lost, for our kids. More and more people have no idea what it’s like.
”It’s not only lost starscapes that he laments, but darkness itself. WIRED talked to Bogard about what this could mean for humanity’s existential and even physical health.’ (Wired Science).
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