Urbanisation is on the rise worldwide and a strategy to deal with the necessities of urban living, in particular food and energy usage, is one of the main challenges of the 21st century.
The World Health Organisation (WHO), via its Global Health Observatory noted that this year, urban populations (with a large proportion concentrated in less developed regions of the world) accounted for 54% of the world’s total population, increasing from 34% in 1960.
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