"Cities and biodiversity"@en . . . . . . "In 1950, only three of the world's most populous cities were in developing countries. Currently, only three of the world's most populous cities are in rich countries. Cities occupy two per cent of the planet\u2019s surface but their residents use 75 per cent of the Earth\u2019s natural resources. The megacities of the world can today be included among the richest countries with regard to biodiversity."@en . . "In 1950, only three of the world's most populous cities were in developing countries. Currently, only three of the world's most populous cities are in rich countries. Cities occupy two per cent of the planet\u2019s surface but their residents use 75 per cent of the Earth\u2019s natural resources. The megacities of the world can today be included among the richest countries with regard to biodiversity."@en .