Religion is pointed out as an obstacle to population stabilization.
However, the church's objection to population control is not that they do not want to stabilize the world's population, but they are opposed to the chief method proposed by population stabilization proponents - the murder of innocent lives by abortion. This means having, at most, two children. If you want more, adopt. If the entire world's population were placed in Texas there would be 22,338 people per square mile. The population density of the City of New York is 24,327 per square mile.