Artificial Light at Night (ALAN):

Artificial Light at Night (ALAN) refers to the excessive use of artificial lighting during nighttime hours. It’s a growing concern due to its significant impact on both human health and the environment.

Impacts of ALAN:
Human Health:

• Disrupts sleep patterns and circadian rhythms.
  Linked to increased risk of certain cancers, obesity, and diabetes.
  Affects mental health and well-being.
• Wildlife:
• Disrupts migration patterns and breeding behaviors.
  Affects nocturnal predators and prey interactions.
  Contributes to declining populations of many species.
  Environment:
• Energy consumption and greenhouse gas emissions.
  Light pollution, affecting astronomical observations.
  Impact on plant growth and development.
  Mitigating ALAN:
  Shielding lights: Directing light downward to prevent upward spill.
  Using warm-colored lights: Less disruptive to circadian rhythms.
  Reducing light intensity: Only using necessary light levels.
  Turning off lights when not needed: Conserving energy and reducing light pollution.