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.....

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