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  ____     _    _    __   _      ___      ______  
 |  _ \\  | || | || | || | ||   / _ \\   /_   _// 
 | |_| || | || | || | '--' ||  | / \ ||  `-| |,-  
 | .  //  | \\_/ || | .--. ||  | \_/ ||    | ||   
 |_|\_\\   \____//  |_|| |_||   \___//     |_||   
 `-` --`    `---`   `-`  `-`    `---`      `-`'

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Text this: Energy and material flows of megacities