Based on United Nations estimates, the global population is growing by 1.18 per cent annually or an additional increase of 83 million people every year. In short, the world’s population is projected to increase by more than one billion people within the next 15 years, reaching 8.5 billion in 2030, and to increase further to 9.7 billion in 2050 and 11.2 billion by 2100. According to UN Habitat, the number of slum dwellers is estimated at 863 million by 2014 account, compared to 760 million in 2000 and 650 million in 1990. They account for around 33 per cent of urban populations. Combine these two, add increasing global temperatures to the mix, and humanity stands on the brink of global crises.
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