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https://www.futura-sciences.com/plane...-double-cours-derniere-decennie-14620
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http://www.lemonde.fr/biodiversite/ar...70-alerte-le-wwf_4758672_1652692.html
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http://www.economist.com/node/21554490?fsrc=scn/tw/te/ar/anoceanoftroubles
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