Did you know if you took every man, women and child on earth you could fit them all in Road Island or you can give each family on earth each 10,000 sqft of land in Texas.
The other scare tactic that is related, is about the amount of available water. Every single war in history was related to water in one way or another, water is political power that is all it is.
If I could not have a few inches of space around me I'm sure would go stark raving mad!
According to http://www.shgresources.com/ri/almanac/, Rhode Island has a total area of 1,545 square miles. 500 square miles of that is water, leaving 1,045 square miles of land.
1,045 sqare miles = 27,878,400 square feet.
6 billion people (every man, woman, and child on Earth) / 27,878,400 square feet = 215 people per square foot. That sounds a bit crowded.
As for Texas: (http://www.shgresources.com/tx/almanac/)
268,581 sq. miles total.
261,797 sq. miles of land.
7,298,481,484,800 sq. feet of land.
divided by 6 billion people =
1 person for every 1216 square feet, or a 35ft. x 35ft. plot of land for everyone.
So yeah, if every family on Earth had 8 people, each family would get 10,000 square feet of land.
Don't believe everything you think.