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They say in Castenaso, a Municipality of 16,000 inhabitants in the Bolognese area, that about 20 liters of water are used for each shampoo and for this reason the mayor Carlo Gubellini imposed on “barbers and hairdressers to wash customers’ heads only once, in addition to rinsing”. It would be funny if it were not for the fact that Italy is full of ordinances, squeezed between the extreme heat of climate change and the urgency of water rationing for