The mortality revolution occurred in europe during the mid 19th century when

Mortality in the 19th century didn't begin to decline because more people were born, but because many less died at an early age, with the advent of new agricultural technology and new transport, they brought food to almost all populations. famines, declined greatly. New technologies born in the Age of Industrialization also improved public health, and birth rates leveled off, leaving so many children dying at birth or after birth. Thus the population of the world grew rapidly during the Industrial Revolution, and was called the Mortality Revolution, directly linking the new era of technology with the low death rate.

Increasing the release of greenhouse gases and pollution