For any tree-uggers out there prepared to say "See! Is that how you want to leave the world for your grandchildren?", see "The Polulation Bomb" to see how the world should have looked in 1985.
"In 1968, Dr Ehrlich predicted in his best selling book, "The Population Bomb", that "the battle to feed humanity is over. In the course of the 1970s the world will experience starvation of tragic proportions; hundreds of millions of people will starve to death."
says it all.