The projection is owing to improved quality of life through global trade. Since the 20th Century the rate of extreme poverty has been decimated and continues to

The projection is owing to improved quality of life through global trade. Since the 20th Century the rate of extreme poverty has been decimated and continues to drop. In 1st world countries the fertility rates are already stagnant. The growth rate is targeted and achieved through immigration, from countries with lower quality of life and higher child mortality.