Biosfera
The Biosfera is Renzo Piano’s glass-sphere landmark that peers over the Genoa waterfront, a standout feature of the Porto Antico. Conceived for the 2001 G8 summit and opened to the public that year, the sphere is a 20-metre-diameter glass-and-steel bubble suspended over the sea near the Aquarium of Genoa. Inside, a controlled climate sustains a tropical rainforest, housing more than 150 plant and animal species, including seven-metre tree ferns and a variety of birds, turtles, and fish. The structure weighs about 60 tonnes and offers roughly 200 square metres of exhibition space. Two climate systems keep the micro-ecosystem in balance: an artificial, seawater–heated heat-pump setup beneath the sphere for winter comfort, and a natural system of movable sails that modulate solar gains by responding to the sun’s position. …
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