India in a world of fewer babies preparing for the coming demographic shift 

Global birth rates have changed dramatically, telling a captivating story. In the 1970s, Mexican women could have had seven children; by 2014, they averaged two. The lowest fertility rate in the world is 0.75 children per woman in South Korea. A recent report in the journal Nature (August 2025) called this occurrence the "baby bust," describing a demographic shift that caused a global population peak and decrease within decades.