Norilsk vs Arapongas

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Norilsk (Russian: Нори́льск, IPA: [nɐˈrʲilʲsk]) is an industrial city in Krasnoyarsk Krai, Russia, located above the Arctic Circle, east of the Yenisei River and south of the western Taymyr Peninsula. It has a permanent population of 175,000. With temporary inhabitants included, its population reaches 220,000. It is the world's northernmost city with more than 100,000 inhabitants and the second-largest city (after Murmansk) inside the Arctic Circle. Norilsk and Yakutsk are the only large cities in the continuous permafrost zone.

The nickel deposits of Norilsk-Talnakh are the largest-known nickel-copper-palladium deposits in the world. The smelting of the nickel ore is directly responsible for severe pollution, which generally comes in the form of acid rain and smog. By some estimates, one percent of global sulfur dioxide (SO2) emissions come from Norilsk's nickel mines. The Nornickel company has its main operations in the area where it is the largest employer.

Source: Wikipedia

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Arapongas is a municipality within the state of Paraná, South Region, Brazil. It is located in the Metropolitan area of Londrina, Microregion Apucarana and Mesoregion North Central Paranaense, being located at a distance of 386 km from the state capital, Curitiba. It occupies an area of approximately 382 km2.

In 2016, its population was estimated by the Brazilian Institute of Geography and Statistics in 116,960 inhabitants, the sixteenth-most populous city of Paraná, and second-most populous metropolitan area of Londrina.

Source: Wikipedia