Overpopulation is a myth. Economist Thomas Sowell did the math and figured that the entire population can fit into an area the size of Texas in single family houses with 5 per house (adjusted figure). As far as food goes we have no idea what the production capacity is- we've never tried. 96% of all famine and starvation are from political reasons- for example, the Queen of England could feed all the poor and still gave several trillion dollars left.