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many seals who are just a few weeks old are shot , impaled and clubbed to death on ` sealing ' vessels for their fur .
` they are dying a violent death for fur products that nobody wants or needs , ' said sir paul mccartney who backs the charity who took chilling photographs .
demand has diminished after purchase of seal products was banned by both european union and the united states .
newfoundland government has pledged millions of pounds worth of subsidies to prop up country 's ` dying industry '