Is Humanity Facing Extinction? The Truth Behind Declining Birth Rates

Are we on the brink of extinction? The question might seem alarmist, yet the statistics paint a startling picture. Every two years, one million Japanese disappear, China's population is set to halve by the end of the century, and Italy's median age has reached 48. The world over, birth rates are plummeting. But what does this mean for humanity, and how severe is the situation really?