sentences:  Nowadays average pay is over $1,000 per month and workers enjoy two to three months of vacations; nevertheless, working and living conditions in Norilsk remain harsh.In July 2000 at the St. Petersburg Research Institute of the Arctic and Antarctic (), Norilsk Nickel investigated using decommissioned nuclear powered submarines, both from the United States and Russia, to transport materials along the Northern Sea Route () between the Yenesei and elsewhere.With a cost of $72–80 million per Typhoon submarine overhaul and refit, refitted decommissioned Typhoon submarines, which, after overhaul and refit, would have a modified ice breaking bow capable of breaking ice up to thick in seawater and up to in the freshwater mouth of the Yenisei, were thought to be able to transport up to 12,000 tonnes of supplies and nickel between Dudinka and either Murmansk or Arkhangelsk.