Norilsk, Russia
This city is very cold because the annual temperature here is -10 degrees Celsius. At the same time, during winter the temperature changes to -55 degrees Celsius. The city is shrouded in darkness for two months every year, which is why architects designed the city in such a way that the strong winds are somewhat blocked, as it is almost impossible to stop them completely.
There are no roads to the city, only one freight railway line and the port city of Dudinka 40 miles away provides a route to the city by sea - although it freezes in winter.
The northernmost city in Russia.
The city is also one of the most polluted cities due to high concentrations of copper, nickel, and sulfur dioxide in the air. Mining and factories operate 24 hours non-stop.
Each year, nickel plants emit more than two million tons of toxic gases, including sulfur dioxide, nitrogen oxides, carbon, phenol and others.
A polluted river on the outskirts of Norilsk.
Dead fish are caused by toxic substances.
This not only caused acid rain that killed many of the surrounding trees, but also took many lives of the residents of Norilsk.
