A newborn Filipino girl named Danica is being championed as the world's symbolic 7 billionth baby. It's impossible to know Earth's population in real-time, but the UN estimates the 7 billionth person was born at some point on October 31. This has led to other countries claiming their own 7 billionth babies, amid pomp and circumstance. The milestone isn't all fun and games. It highlights the growing problem of overpopulation. Should the parents of these babies be looking for alternative places to raise their families?