EVERYDAY SCIENCE

Detailed explanation-1: -The world’s population is more than three times larger than it was in the mid-twentieth century. The global human population reached 8.0 billion in mid-November 2022 from an estimated 2.5 billion people in 1950, adding 1 billion people since 2010 and 2 billion since 1998.

Detailed explanation-2: -Population growth rate The last 100 years have seen a massive fourfold increase in the population, due to medical advances, lower mortality rates, and an increase in agricultural productivity made possible by the Green Revolution.

Detailed explanation-3: -Particularly over the course of the 20th century: Over the last 100 years global population more than quadrupled. As we see in the chart, the rise of the global population got steeper and steeper and you have just lived through the steepest increase of that curve.

Detailed explanation-4: -Human population has grown exponentially over the past century. It has done so largely by producing large amounts of food, and learning how to control disease.

Detailed explanation-5: -In the last 100 years the world population has quadrupled from two to eight billion people despite two major world wars, many smaller wars, etc.