VIDEO: Problem of dead fish in the river basin Remo

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Rio Olympics: Pollution of dead fish in the lake rowing blamed

April 17, 2015 Updated 07:40 BST

Tons of dead fish from the lake in downtown Rio de Janeiro, Brazil, rowing and canoeing events at the 2016 Olympic Games will be removed.

Local politicians say it is a natural phenomenon, but many scientists say is the result of pollution and waste.

Wyre Davies reports.

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