Lights Out: Markham Street Films

Have electricity
Are exposed to light pollution
People in the world
  1. Problem
    Present the PROBLEM
  2. Prevention
    PREVENT exposure
  3. Protection
    PROTECT yourself and your community

"Blue Light Has a Dark Side"

"Light Exposure at Night"

  “Light at night is bad for your health, and exposure to blue light emitted by electronics and energy-efficient lightbulbs may be especially so.”
- Harvard Health Publications
"The results of several studies suggest that women who work at night -- factory workers, doctors, nurses, and police officers, for example -- have a higher risk of breast cancer compared to women who work during the day. Other research suggests that women who live in areas with high levels of external light at night (street lights, for example) have a higher risk of breast cancer."

"Missing the Dark: Health Effects of Light Pollution"

"63% of the world population and 99% of the population of the European Union and the United States (excluding Alaska and Hawaii) live in areas where the night sky is brighter than the threshold for light-polluted status set by the International Astronomical Union."
- Ron Chepesiuk, obtained from “The First World Atlas of the Artificial Night Sky Brightness”

"How Does Light Pollution Affect Humans?"

"The World Health Organization now lists 'shiftwork that involves circadian disruption' as a probable carcinogen."
- International Dark-Sky Association
1. Chepesiuk, R. (2009). Missing the Dark: Health Effects of Light Pollution. Environ Health Perspect Environmental Health Perspectives,
117(1). doi:10.1289/ehp.117-a20