Russia’s northernmost city, Norilsk, is a place of extremes. With a population over 100,000, it lies in the freezing Siberian Arctic, dependent on imported food. Norilsk’s economy is driven by mining, and it is one of the most polluted cities in Russia. As VOA's Daniel Schearf reports from Moscow for Ricardo Marquina Montanana, life in Norilsk comes at a cost.