Why an ageing population is an encouraging sign

Hania Zlotnik, director of the UN Population Division, sees an ageing population as an encouraging sign since people have fewer children. In her opinion the greatest challenge for an ageing world population is economic adaptation. By 2050, more than one in five of the 9 billion people on Earth will be over the age of 60, according to a U.N. report. read article here read article about newest population numbers here