6: Turn off your outdoor lights by ihough

Every time you complete this action, you will reduce emissions by an estimated 2 lbs. CO₂e.

Light pollution makes the stars harder to see each year. It also represents a huge waste of electricity. Many outdoor lights are left on all night, and people often forget to turn them off during the day. Ask yourself whether those lights are really necessary.

If you decide you still need some outdoor lights, install a combination motion and photo sensor. This will turn the lights on if it’s dark and someone is around, but keep them off otherwise.

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