"We are imagining the future", explains Inza Fofana, holding a bag full of rubbish. He left three years ago the Ivory Coast at war and arrived in Italy on a boat, after he crawled up half of the African continent. A guest for months in the Libyan hell. Inza, now eighteen, is one of the many students from the Buccari and Marconi institutes of Cagliari who took part in the "#PlasticFreeGC" initiative, promoted by the general command of the Coast Guard Corps on request of the Ministry of the Environment.