![]() Furthermore, about 60% of cities have also seen an increase in land consumed per new resident. Over the last 25 years, cities globally have grown in size by an area equal to that of Romania.In the majority of countries population grows faster in urban areas than in rural ones. According to the same new definition, urban centres have almost doubled in number (from more than 6,900 in 1975 to more than 13,100 in 2015) and their population size has also grown.While, for 2015, the UN reports that 54% of the global population lived in urban areas, this new definition leads to an estimate of 76.5% in 2015 - some 5.6 billion people. Based on this new definition, the world is already much more urbanised than previously thought. The recently adopted Degree of Urbanisation allows a consistent definition and comparison of urbanisation at a global scale.
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