The World's Biggest Mine (Video)

Think about the city. It is typically an aggregation of things - people, buildings, infrastructure and vehicles. The city is a magnet of consumption. Think about the vast amount of goods and services, utilities and data consumed by the global built environment day after day. Cities have a multitude of inputs - roads, ports, railways, airports, cables and pipes that bring these things into and out of the city. Think about the amount of resources used to build that environment and run all of the systems modern buildings use.