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![news__gate Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::183274607.png) NewsGate [@news__gate](/creator/twitter/news__gate) on x XXX followers
Created: 2025-07-23 03:31:00 UTC

- UN projections showing global population peaks varying widely by country, with China peaking at XXX billion in 2021 due to its one-child policy (1979-2015), which a 2019 Lancet study estimated reduced births by XXX million, accelerating its demographic decline.

- Japan’s peak at XXX million in 2010 reflects a fertility rate dropping to XXX (below the replacement level of 2.1), a trend backed by a 2023 UN report linking low birth rates to urbanization and economic stagnation, challenging the narrative of perpetual population growth.

- Brazil’s projected peak of XXX million in 2042 suggests a slower decline, influenced by a 2021 study in Population Studies showing higher fertility in less urbanized regions, contrasting with rapid declines in industrialized nations like Germany, peaking at XX million in 2024.


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**Related Topics**
[china](/topic/china)

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