When was the last time you got a really clear view of the night sky? There is an entire universe out there, but artificial lighting has cut us off from it. 

Most people understand that various products of human activity have the potential to harm wildlife when they’re released into the world, and we routinely call these products “pollutants.” Fewer people are accustomed to thinking of carelessly spread artificial light that way, but a growing body of evidence makes it clear we should.

How can we protect sea turtles, birds, night-flying pollinators and other wildlife? By updating our lighting practices.