An artificial island is an island constructed by man rather than created by natural means. They are constructed by expanding the existing islets and by construction on existing reefs or merging some natural islets into a bigger island. Artificial islands are usually constructed by land reclamation.
On the coast of Dubai in the United Arab Emirates, some of the world's largest artificial islands are under construction. These include Palm Jumeirah, Palm Jebel Ali, Deira Islands, and The World islands. An artificial island or man-made island is an island that has been constructed by people rather than formed by natural means. Artificial islands may vary in size from small islets reclaimed solely to support a single pillar of a building or structure, to those that support entire communities and cities.
Spanning an area of 970 square kilometers, "Holland's Flevopolder" is the largest artificial island in the world. "Palm Jumeirah" in Dubai, one of the largest artificial islands in the world. Early artificial islands included floating structures in still waters and wooden or megalithic structures erected in shallow waters. In modern times, artificial islands have usually been formed by land reclamation, but some have been formed by the incidental isolation of an existing piece of land during canal construction.
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