Population Ageing
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Population ageing occurs when the median age of a country or region rises. This happens because of rising life expectancy or declining birth rates. Excepting 18 countries termed 'demographic outliers' by the UN) this process is taking place in every country and region across the globe. In the entirety of recorded human history, the world has never seen as aged a population as currently exists globally. The UN predicts the rate of population ageing in the 21st century will exceed that in the 20th. Countries vary significantly in terms of the degree, and the pace, of these changes, and the UN expects populations that began ageing later to have less time to adapt to the many implications of these changes. Contents
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