Light Pollution Solutions for the Twenty-First Century

Abstract

The task of confronting and reversing light pollution, which has erased much of the detail of the night sky since the mid-twentieth century, has been great. Campaigners have largely succeeded in making the general public aware of the problem. Most people now realize that light at night has its ‘dark’ side. Sadly, there are still many astronomers, both amateur and professional, who do little or nothing to combat light pollution, believing perhaps that the battle is lost or the hill too steep to climb (Fig. 9.1).