Zvinhu zvakakosha Pakati pa2015 na2050, chikamu chehuwandu hwevanhu pasi rose mumakore makumi matanhatu chinoda kupeta kaviri kubva pa12% kusvika pa22%.Panosvika 2020, huwandu hwevanhu vane makore makumi matanhatu zvichikwira huchapfuura vana vari pasi pemakore mashanu.Muna 2050, 80% yevanhu vakwegura vachange vachigara munyika dzine mari yakaderera uye yepakati.Huwandu hwekuchembera kwevanhu hwakanyanya ...
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