>"Norilsk, Russia, has long been recognized as one of the most polluted places on Earth, because of Norilsk Nickel, the world’s biggest producer of palladium and high-grade nickel."
>"Norilsk, Russia, has long been recognized as one of the most polluted places on Earth, because of Norilsk Nickel, the world’s biggest producer of palladium and high-grade nickel."