All our seas and oceans are polluted, but th Barents and Kara Seas, south ofihe Arctic Ocean, are more polluted than all the others. It is amazing how much waste has been dumped there. It is known that 14 nuclear reactors, one nuclear submarine with fuel and thousands of barrels of chemicals have been sunk there. It's not certain what this has done to the environment, but Norwegian scientists believe that in some places is enough radioactive material in the Arctic chain destroy whole families of sea life.