It could even be a miracle. I'll have to get a copy of that Cohen Bible. We don't need population-control policies. We need to put the horse before the cart. High birth rates don't cause poverty.
Poverty causes high birth rates.
If you are financially secure you have fewer children. If you are not, you have more. The only way to achieve harmony and sustainable balance between population and resources is not to limit immigration, nor to impose western conceived birth control regimes on the third world. These efforts will fail. The only way to acheive this goal is to tackle the cause of excessive population growth.