Life in cold region is very difficult. It is thinly populated and the people have semi-nomadic life. Eskimos, Lapps, etc. live in igloos in winter and tupiks (animal tents) in summer. Hunting and fishing are major occupations of tundra people. Since few decades there are some changes in their lifestyle. They have started to live in wooden houses and engaged in reindeer farming, mining, lumbering etc.