The human species has crowned 8 billion, with longer lifespans offsetting fewer births, however international population enlargement continues a long-term pattern of slowing down, the U.S. Census Bureau stated Thursday.
The bureau estimates the international population exceeded the threshold Sept. 26, an exact date the company stated to take with a grain of salt.
The United Nations estimated the quantity was once passed 10 months previous, having declared November 22, 2022, the “Day of 8 Billion,” the Census Bureau pointed out in a statement.
The discrepancy is due to countries counting people differently — or not at all. Many lack systems to record births and deaths. Some of the most populous countries, such as India and Nigeria, haven’t conducted censuses in over a decade, according to the bureau.
While world population growth remains brisk, growing from 6 billion to 8 billion since the turn of the millennium, the rate has slowed since doubling between 1960 and 2000.
Countries such as Canada have been aging with declining older-age mortality, while countries such as Nigeria have seen dramatic declines in deaths of children under 5.
Fertility rates, or the rate of births per woman of childbearing age, are meanwhile declining, falling below replacement level in much of the world and contributing to a more than 50-year trend, on average, of slimmer increases in population growth.
The minimum number of such births necessary to replace both the father and mother for neutral world population is 2.1, demographers say. Almost three-quarters of people now live in countries with fertility rates around or below that level.
Countries with fertility rates around replacement level include India, Tunisia and Argentina.
About 15% of people live in places with fertility rates below replacement level. Countries with low fertility rates include Brazil, Mexico, the U.S. and Sweden, while those with very low fertility rates include China, South Korea and Spain.
Israel, Ethiopia and Papua New Guinea rank among countries with higher-than-replacement fertility rates of up to 5. Such countries have almost one-quarter of the world’s population.
Only about 4% of the world’s population lives in countries with fertility rates above 5. All are in Africa.
Global fertility charges are projected to say no no less than via 2060, and not using a nation projected to have a fee upper than 4 by way of then, in step with the bureau.