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How does Sea Pollution affects our Shipping ?

How does  Sea Pollution  affects our Shipping?
''Sea Pollution'' refers contamination of sea water by the  decomposition  of wastes in the form of Chemicals , Oil , Plastics , E - Waste , Seawage , Drainage etc.
Then the questions rises who is responsible ?
           
          
Source of picture : BluePlanet.edu

Now our Question is How does it affects our Shipping ? 

Coming to the answer of this question lets assume a situation , Initially major source of coolant was  Sea Water but because of Polluted sea water scale formation  and corrosion started taking place in the pipelines, filters , coolers etc, which result in clogging of filters and failure of the system onboard the ship. 
 To troubleshoot this problem ,Central cooling system is used in which we avoid direct cooling through sea water instead fresh water is circulated throughout the ship machineries and is getting cooled by sea water . Hence length of pipelines carrying sea water is reduced and chances of getting failure can be avoided.

Do you think  only this could be a single  problems our ships encounter through? Answer is Big no .
The whole giant ship is floating over it and almost 80 per cent of ships hull is in contact with water . So we cannot escape everywhere . And hence this is our major concern .

Marpol 73/78 , international convention for preventing Marine Pollution at sea is only regulating the activities of ships which is only 10 per cent of all the pollution.


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