Rise of the glass giants: how modern cities are forcing skyscrapers to evolve

Slick, glassy skyscrapers cast their shadows over the streets and spaces of cities all over the world. These behemoths are notoriously inefficient: glass exteriors trap the sun's rays during summer and haemorrhage heat throughout the winter, requiring year-round air conditioning and climate control. Dark interiors necessitate vast arrays of bright lighting, while hundreds of computers whirr 24 hours, consuming even more electricity.