Electric light is transforming our world. Around 80% of the global population now
lives in places where night skies are polluted with artificial light. A third of humanity
can no longer see the Milky Way. But light at night has deeper effects. In humans,
nocturnal* light pollution has been linked to sleep disorders, depression, obesity and
even some types of cancer. Studies have shown that nocturnal animals modify their
変更する
behavior even with slight changes in night-time light levels. Dung beetles* become
でさえ
disoriented when navigating landscapes if light pollution prevents them from seeing the
方向感覚を失わせる。 移動する
Spes Ing & PR
stars. Light can also change how species interact with each other. Insects such as
moths are more vulnerable to being eaten by bats when light reduces how effective they
~される恐れがある、~されやすい
are at evading predators.
**