Outside Magazine (9 June 2016)

The Night Sky Is Disappearing, But We Can Save It

Astronomers have complained about excess light as early as the late 1800s, when some of the first streetlamps began to significantly obscure the night sky. But recently the problem has grown so bad it has inspired a movement of astronomy nerds, amateur stargazers, and wilderness lovers rallying to preserve darkness. 
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“It’s not like air pollution or water pollution where you can stop the polluting but it takes a while for the environment to flush the pollutant out,” says John Barentine, a bespectacled astronomy PhD and program manager for the International Dark-Sky Association, an Arizona-based non-profit. “It’s literally something where if we wanted to, we could change it overnight.” 

Read more: ​http://www.outsideonline.com/2089901/night-sky-disappearing-we-can-save-it#st_refDomain=t.co&st_refQuery=/ivAFA8XNgn