The World Without Us has 336 pages.

The duration of The World Without US is 1.4 hours.

The World Without US was created on 2008-01-02.

because they controlled half of the world without poooping

This is totally dependant on your philosophy and what you mean by this question. Simply, the world CAN exist without man (as it did for billions of years before us, and more than likely will continue to exist without us), and man could exist without "world".

Looking deeper, and if by "world", you mean "culture" (or some analog thereof), it is because the very definition of "culture" requires the action of "man". Conversely, everyone draws on "culture" ("world") in some fashion.