Billboards and the Night Sky

Standard billboard with wasted light (photo: IDA, via National Geographic Kids)

To follow up on yesterday's post from earlier this week on the energy use of billboards, it also is important to note the negative impact billboards have upon the Night Sky. Billboards generally are lit in an upwards, wasteful manner that unnecessarily spill light into the night sky and neighboring properties. To find out more about outdoor lighting and the importance of preserving the wonders of the Night Sky, visit our friends at the International Dark-Sky Association.