Answer: How much of the world’s population lives under a light-polluted sky?

The Question: How much of the world’s population lives under a light-polluted sky?

A 55%
B 72%
C 83%

According to the International Dark-Sky Association, 83% of our global population suffers from excessive, and sometimes harmful, artificial lighting, known as light pollution. Luckily, this is much easier to fix than other types of pollution. We can start by rethinking our light-usage habits.

The correct answer is 83%.

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