A great demographic shift is taking place as rural populations are moving to urban centers (in-migration) with the hopes of gaining employment, having access to healthcare for their families and education for their children. In mid-2017, of the 7.5+ billion global population, 4.0 billion people lived in cities and 3.5 billion lived in rural settings. By 2050, the projected global population is projected to be 9.8 billion earthlings, with a continuing demographic shift that is estimated to increase the urban population to 6.9 billion leaving a rural population of 2.9 billion people . Some of the urban growth will be natural, much is expected to come from in-migration as noted above, and part will be from immigration as allowed by national laws.
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