Q: just wondering
A: Hmmmm, A human bladder holds about 250 cc 1.00000 Cubic Centimeter = 0.03381 Fluid Ounces (US) thats 84.525 oz per person. (yes I have too much time on my hands and am a sucker for a riddle.) The world population reached 6 billion on July 19, 1999 acording to another answer here. Every minute there are an estimated 250 births and 103 deaths in the world, which equals an increase of 147 people every sixty seconds. Source(s): http://www.factmonster.com/ipka/a0778698... That's another 77,263,200people each year. So on July 19th 2006 there will be 6,540,842,400 people in the world approx. Lake Erie holds, from another answer here on yahoo, 1,277,295,890,000,000,000,000 gallons. So if 6,540,842,400 people urinate 84.525 oz into Lake Erie That would fill it with 552,864,703,860 oz or 4,319,255,499 gallons approx of urine. With only 4,319,255,499 gallons of urine in a 1,277,295,890,000,000,000,000 gallon container you could not turn it yellow from space. It would only replace 0.000,000,000,003% of the lake. Looks like world peace can't acomplish everything! LOL