ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by @babaktafreshi In the pitch-black starry night of Death Valley National Park, a car heads downhill. The yellow glow on the horizon resembles a sunrise, but it is Las Vegas, 90 miles away (145 km), at midnight! ⁣⁣Inside cities with so much light, you are enveloped in an artificial sky glow—the natural night environment is gone. According to International Dark Sky Association, the negative effects of this loss might seem intangible, but a growing body of evidence links the brightening night sky to the following: increased energy consumption; ⁣disrupting the ecosystem and wildlife⁣; harming human health; ⁣and worsening crime and safety. ⁣The good news is that light pollution, unlike many other forms of pollution, is reversible—and each one of us can make a difference by learning more. Look for "Our nights are getting brighter" on natgeo.com and explore more with me @babaktafreshi. ⁣#lightpollution #saveournightsky #lasvegas @deathvalleynps @idadarksky Check out Nat Geo's link in bio for more on this story.」7月30日 3時36分