«I don't judge the work of the Fosso della Noce. It would be opinionated for those who have studied it for months and years».

Mario Tozzi , geologist , first researcher of the Cnr, presenter of scientific programs in Rai comments on the intervention planned by the Municipality in the Sassari valley. A 5 million euro job that has provoked protests from local committees.

«I can only speak of the geological aspect in general. And this tells you that the less you touch the ditches and the less damage you do ». The problem always revolves around the amount of cement used. “I am unable to say whether it can be dispensed with in this case. It's usually a bad service to use it unless there's an emergency." Which is the one proposed for the area due to the HI4 hydrogeological risk level, the most dangerous.

"I can say that today, in these cases, the attempt is to work with natural materials, such as hemp, to have an effect on the water flow". Alternatives therefore, according to Tozzi, less impactful and which restore the balance of the habitat.

"Let's bear in mind that nature is neither evil nor murderous, you have simply put yourself in the wrong place". A precise reference, linked to recent and past floods such as the one in Olbia: «If you have placed buildings in a dangerous situation, as in Ischia, they are the ones you have to remove to make them safe». And if the options, according to the adviser, have certainly been taken into consideration by the designers, the objections of the committees remain.

"They should have - he says - made their voice heard in the services conference". Then he makes a comment on the city: " Sassari has had little planned development and that to define chaotic is an understatement ".

And he confirms the great evils for the island and its land: «Hydrogeological instability and constructive bulimia. You want to build everywhere by changing the rural landscape and attacking the coasts».

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