Vorkuta lies on the edge of Russia 's permafrost boundary , and some scientists predict that continued warming could advance that border hundreds of miles northward , weakening the earth beneath the vast infrastructure built during the days of the Soviet Union 's industrialization of the Arctic .
Russia /location/location/contains Vorkuta
NNP VBZ IN DT NN IN NNP POS NN NN , CC DT NNS VBP IN VBN NN MD VB IN NN NNS IN NNS RB , VBG DT NN IN DT JJ NN VBN IN DT NNS IN DT NNP NNP POS NN IN DT NNP .
Russia
LOCATION
Vorkuta
LOCATION
/location/location/contains