Honshu the economy along the northwestern Sea of Japan coast is largely based on fishing and agriculture. The island is linked to the other three major Japanese islands by a number of bridges and tunnels. Its climate is humid and mild. The island is roughly long and ranges from wide, and its total area is , 60% of the total area of Japan, making it slightly larger than Great Britain. Its land area has been increasing with land reclamation and coastal uplift in the north, but global sea level rise has diminished these effects. Honshu has of coastline. Mountainous and volcanic,
Province of Medio Campidano Carbonia-Iglesias and Cagliari. The total area of Medio Campidano is , some 6.3% of the whole island. It is divided into 28 municipalities. The capitals are Sanluri in the east and Villacidro in the south. The environment is diverse, with mountains, hills, plains and coastline. The province is one of the least populated and most unspoilt areas of the island and has earned the name, the "Green Province". The mining industry began to develop in the province in the nineteenth century due to the large lead, copper and silver reserves, but the industry became uneconomical after World War II and