RT @Leksis: RT @guardian By 2025, there will be 29 megacities in the developing world. Check out our interactive: http://t.co/LK0wQDUS

RT @Leksis: RT @guardian By 2025, there will be 29 megacities in the developing world. Check out our interactive: http://t.co/LK0wQDUS

RT @Leksis: RT @guardian By 2025, there will be 29 megacities in the developing world. Check out our interactive: http://t.co/LK0wQDUS

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