Just learn

Question 1

What is the problem with light pollution?

Answer 1

It makes it harder for some animals to hide from predators. This will affect their chances of survival, and the eco-system (those that they eat and are eaten by). People are more likely to become obese or get breast cancer as light can disrupt melatonin production at night when it enters the retina. Disrupted circadian rhythm is a carcinogen.

Question 2

how to reduce light pollution?

Answer 2

reduce brightness of lights, switch off when not in use, switch off if not necessary. Use warm white (avoid blue) lights. shield lights and direct them down.