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

[4-24-2022] Microsoft Rewards Bing Homepage Quiz Question: How much of the world’s population lives under a light-polluted sky?

The given options are:

  • 55%
  • 72%
  • 83%

Correct Answer: 83%

Info: 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.


All three questions from today’s Bing Homepage Quiz are below. You can find their answers by visiting those pages.

  1. That’s the Milky Way galaxy rising above Half Dome. Where are we?
  2. How much of the world’s population lives under a light-polluted sky?
  3. Debatably, where is the brightest spot on the planet?

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