For most people on earth, the dark skies our ancestors had have disappeared. The problem is urban sky glow, due mostly to too much bad lighting. This is also described as "light pollution." One solution to this problem involves improving our nighttime lighting. It would save us a great deal of energy (and money). The reduced use of energy reduces emissions which then helps clean our air.
For additional information, visit the Natural Lighscapes Overview page.
Did You Know?
When first set aside, what is now Sequoia and Kings Canyon National Parks were less than one-ninth of their present size. Over the last century, Congress has made seven major additions to the parks — the last being the Mineral King area in 1978.