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,
Artificial island Great Depression, dooming the island-building project. The concrete pilings from the project still stand as another development boom roared around them, 80 years later. In 1969, the Flevopolder in the Netherlands was finished, as part of the Zuiderzee Works. It has a total land surface of 970 km, which makes it by far the largest artificial island by land reclamation in the world. The island consists of two polders Eastern Flevoland and Southern Flevoland. Together with the Noordoostpolder, which includes some small former islands like Urk, the polders form Flevoland, the 12th province of the Netherlands that almost entirely consists