By the way, 'WWJD' stands for 'WaterWired Joke Day'.
By the way, the number for the total amount of water on Earth is correct. I get 0.0019% as the percentage of total water 6 billion humans would have consumed in 6,000 years (as opposed to 0.0012%). Close enough.
Bottom line: 1.3 x 10^22 liters of water are consumed by 6 billion humans in 3 billion years. Yep - they're right - that is 9.5 times the amount of water on the entire Earth!
So what's the pronlem? Where shall I start?
I wonder if the author of this is the same person who does those calculations for the amount of 'accessible and drinkable' water on Earth?
I am going to use this in class as part of my effort to teach my students to be 'crap detectors'. Can't wait for the other lessons.
"You can't fix stupid." - Ron White