Light pollution

2. We know we
should use lights at
night for safety.

3. But we also know that some of them are not used
for safety…

8. This is the result…

9.  Switch off any lights you are not using.
 Use low-watt lightbulbs.
 Use timers so outdoor lights are only on when
they need to be.
 Install thick curtains or blinds to minimise
light escaping your home at night.
 Use appropiate street lamps.

12. Here are examples of inappropriate street lights.

14. Thanks for sending us
pictures!