If Every Human Died.....

Discussion in 'General Off-Topic Chat' started by Phillyman, Feb 7, 2008.

Feb 7, 2008

If Every Human Died..... by Phillyman at 7:27 PM (2,739 Views / 0 Likes) 25 replies

  1. Phillyman
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    Member Phillyman GBAtemp Regular

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    Ok so I have been thinking about this for a few days now......Everyone is talking about how global warming will raise the sea level. My question is if EVERY human died, how much would the sea level raise? Here are the rough numbers

    6 Billion People on Earth
    Humans are 60% water
    Average weight for a human (160lbs)
    A Gallon weighs 8lbs

    60% of 160 is 96lbs water

    96lbs of water is 12 gallons

    12 gallons times 6 Billion is 72 Billion Gallons

    Now this is where I am having trouble.......How many gallons is needed to raise the sea level 1 foot.....
     


  2. Skye07

    Member Skye07 GBAtemp Fan

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    I've seen a site that predicts what would happen if all people suddenly dissapeared from the earth, there would be some nuclear meltdowns and such, pretty scary stuff
     
  3. FAST6191

    Reporter FAST6191 Techromancer

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    I do not like imperial units so I would have to convert.

    Still a crude estimate could come from simple sphere volume.
    4/3.(pi).radius^3 is volume of a sphere. Get worlds radius and work it out.
    Add 1 foot to the radius, rinse and repeat.
    Take answer 1 from answer 2...
     
  4. striderx

    Member striderx GBAtemp Regular

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    Surface area of a sphere = 4 pi r²
    Radius = diameter/2
    1 mile = 5,280ft
    Diameter of the earth = ~ 7,926mi x 5,280ft/mi = 41,849,280ft
    Radius of earth = 41,849,280ft / 2 = 20,924,640ft

    Fraction of earth covered by water = ~0.71

    1 gallon = 231 inches³
    1ft³ = 12in x 12in x 12in = 1,728in³
    1 gallon = 231in³ / 1,728in³/ft³ = 0.1337ft³
    1 ft³ = 7.4805 gallons

    Surface area of earth's oceans = 4 x 3.1416... x (20,924,640ft)² x 0.71 = ~ 3.9064 E 15 ft²

    Therefore:

    3.9064 E 15 ft² x 7.4805 gallons/ft³ = 2.9222 E 16 gallons/ft to cover the earth's oceans

    or

    29,222,000,000,000,000 gallons/ft

    1,000 thousands 10^3
    1,000,000 millions 10^6
    1,000,000,000 billions 10^9
    1,000,000,000,000 trillions 10^12
    1,000,000,000,000,000 quadrillion 10^15
    or

    29.22 quadrillion gallons/ft

    The water extracted from dead humans would raise the level of the oceans by your calculations:

    72 billion / 29.22 quadrillion/ft = 0.0000025 ft

    or

    0.0000025 ft x 12in/ft = ~ 0.0003 in

    or

    ~ 3 ten-thousandth's of an inch.

    Not much. Less than the thickness of a piece of paper.

    Goes to show you how big the earth is and how puny humans are... even 6 billion of 'em.

    striderx
     
  5. martin88

    Member martin88 GBAtemp Advanced Fan

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    So when people die they turn into water?
     
  6. Sinkhead

    Former Staff Sinkhead yay p1ngpong.

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    Yeah, that's what I was thinking [​IMG]

    The water in our bodies is part of the water cycle. When we are being created the fluid in our bodies comes from what our mother drinks...
     
  7. Skye07

    Member Skye07 GBAtemp Fan

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    lol, well technically, most of the body does since a large piece of the body IS water
     
  8. iciclebox

    Newcomer iciclebox Newbie

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    Duh!

    That's why the put those colorful aquarium pebbles in everyone's coffin.
     
  9. romeoondaline

    Member romeoondaline GBAtemp Fan

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    No they dont turn into water they disolve with the water since we're 60 percent water
     
  10. BORTZ

    Global Moderator BORTZ wtf, nintendo

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    technically the world would never flood completely again...but,
    i saw what would happen on the discovery channel. it would take only about 300 years for all of our monuments and buildings to disappear. the more organized=less stable. the longest lasting landmarks would be mt. Rushmore and the pyramids.
     
  11. Skye07

    Member Skye07 GBAtemp Fan

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    Concrete tunnel between Europe mainland & UK will survive for thousands of years too
     
  12. Phillyman
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    Member Phillyman GBAtemp Regular

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    Yes this is what got me thinking about this!

    I honestly only think the human race only has about 200-250 years left before we die out.
     
  13. romeoondaline

    Member romeoondaline GBAtemp Fan

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    Whoaaa dude thats not that much AT least give them more haha
     
  14. Phillyman
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    Member Phillyman GBAtemp Regular

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    You didn't hear about how all funeral homes now run dead bodies through a human sized Ronco food dehydrator [​IMG]
     
  15. DarkAura

    Member DarkAura Offline

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    People piss all the time, shouldn't that raise the water level too?
     
  16. Westside

    Member Westside Sogdiana

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    We filter it and drink it again.
     
  17. Seraph

    Member Seraph GBAtemp Advanced Fan

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    Aren't humans more around 90-95% water? I don't get how you're getting these calculations either...

    There would also be a decrease in the rate of global warming if humans were gone.

    Only 200-250 years left seems kind of too short also.
     
  18. Dio

    Member Dio WRYYYYYYYYYYYYYYYYYYYY

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    lollllllllll Waterworld and Tank Girl references.
     
  19. ZzzZilla

    Member ZzzZilla GBAtemp Regular

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    Philosophically, this is the scientific version of "If a tree fell in the forest and no one was around to hear it..."
     
  20. dakeyras

    Member dakeyras GBAtemp Regular

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    Somewhere between 45 to 75 percent of the body weight, depending on how much fat or muscle tissue your body contains.
     

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