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Fisherman Francesco Zago works cleaning clams on a boat in Pila, Italy, on the Adriatic Sea which the Po River feeds into, early Friday, July 29, 2022. Drought and unusually hot weather have raised the salinity levels in Italy's largest delta, and it's killing rice fields along with the shellfish that are a key ingredient to one of Italy's culinary specialties: spaghetti with clams. (AP Photo/Luca Bruno)