Thousands of people traveled from nearby towns and villages to attend Bethlehem's annual Christmas Eve tree lighting ceremony, which was canceled the last two years.

If you're watching TV with your Christmas tree lights on and various other ornaments and decorations twinkling in the background, light pollution is hardly a new issue – if anything, it helps keep your attention rightfully focused on your TV, and not any dancing Santas or light-up snowglobes you have dotted around.