The Han have emigrated from mainland China for various reasons over the years. As a result, they now live in nearly every country of the world. About four-fifths of North Korea's land is mountainous. The remainder, which is suitable for farming and industry, contains the entire population of North Korea. The climate is similar to that of New England, except for the cold Siberian winds in the winter.
Wildlife includes deer, antelope, wild pigeons, and tigers.
The Han Chinese living scattered throughout North Korea have, for most part, retained their Chinese heritage and have even influenced Korean culture. After World War II, North Korea changed from an agricultural to an industrial nation. This was due primarily to the plentiful supply of electric power in the area. At that time, many of the Han Chinese in North Korea migrated into the industrial cities. Today, the production of iron and steel, industrial and agricultural machinery, and textiles, are the three most important regional industries.