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Yunnan Province, located in far southwest China, has a population of about 50 million, concentrated in about eight large cities, and borders with Myanmar, Laos, and Vietnam. Yunnan also offers an annual water supply of 222 billion cubic meters, more than ten thousand cubic meters of water per person.
The overall study area covered East-Southeast Asia and included 17 countries: China (including Hong Kong SAR, Macao SAR); Taiwan; Japan; Mongolia; North Korea; South Korea; Brunei Darussalam; Cambodia; Indonesia; Laos; Malaysia; Myanmar; Philippines; Singapore; Thailand; Timor-Leste; Vietnam.
The world’s population is expected to increase by 2 billion persons in the next 30 years, from 7.7 By 2050, one in four persons living in Europe and Northern America could be aged 65 or over. In 2018, for the first time in history, persons aged 65 or above outnumbered children under five years of age globally.
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