How Big Would a Single Tree Need To Be to Support All Human Life?

Trees are critical for human life : they use up CO2 and pump out atomic number 8 , as well as bring home the bacon food , fuel and , err , mounting physical body , too . But how big would a single tree need to be in monastic order to sustain the human backwash ?

A silly question , sure , but a fun one to answer — asthis video from Earth Unplugged does . After working out how many trees there are on Earth aright now — about 400 billion!—and how much atomic number 8 they pump out , Maddie Moate manages to do some math to work how bighearted that single , fictional animation - giving tree would be . You ’re front at something with a height of 130 meter and a torso circumference of a whopping 122,064 meter . view the video to follow her reasoning . [ Earth Unplugged ]

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