could make use of a system that was much more sustainable and inexpensive than conventional air conditioning.

Cities of water

This square had no walls, so its contents were visible from outside. The exhibit was about water as an "urban resource" and a "natural element in the process of improving quality of life in cities".

Extreme water

This square symbolised the moment when a wave breaks on the beach. It was divided into two areas: the first was the sensorial area with 120 mobile seats where audiovisuals were

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