Justin Bieber

Justin Bieber is a fairly successful singer-songwriter.
The music video for his song "Baby" is the most viewed video on youtube, with 500 million hits.
So how much time have people spent watching it?
3 minutes, 45 seconds per view.
Almost 4 thousand years.
To watch a video and listen to music, an average computer uses about 280 watts every hour.
In the United States, where most of the views come from, 1 pound of carbon dioxide is created for every kilowatt used.
Almost 10 million pounds of carbon dioxide have been created to watch this single video.





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