LOS ANGELES — As the old saying goes, many hands can make light work. They can also work together to make light vanish.
Urban light pollution is a large-scale issue, but individual households can help their communities turn down the lumens while still ensuring safety.
Nancy Clanton, chief executive of the lighting engineering firm Clanton & Associates in Boulder, Colorado, is passionate about sustainable illumination. She's a member of the International Dark-Sky Association's technical committee, and she offered this advice to reduce light pollution in your neighborhood:
