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Tulun(tŭlo͞on`) inhabited atoll, Papua New Guinea, SW Pacific, in the N Solomons Islands chain 45 mi (72 km) NE of Buka. Also known as the Carteret Islands, Carteret Atoll, and Kilinailau, the atoll is about 12 mi (19 km) in diameter and contains seven islands. The islands, which are gradually sinking into the ocean and becoming uninhabitable, are notable primarily because their situation is regarded by some as the result of rising sea levels due to climate change (see global warmingglobal warming,
the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution. Global warming and its effects, such as more intense summer and winter storms, are also referred to as climate
..... Click the link for more information. ). It is unclear, however, whether that or another natural process known to cause atolls to subside, is the explanation.
a city under oblast jurisdiction and the administrative center of Tulun Raion, Irkutsk Oblast, RSFSR. Situated on the lia River in the Angara Basin. Railroad station 390 km northwest of Irkutsk. Population, 51,000 (1975). Tulun is a major center of the timber, wood-products, coal, and building-materials industries. It has a glassworks, a hydrolysis plant, an automotive repair shop, and a shop for repairing electrical equipment. A pedagogical school, a medical school, and a sovkhoz-technicum are in Tulun.