article_snippet.sent: (CNN)The bad news for Rio de Janeiro ahead of the 2016 Olympics keeps coming after scores of dead fish appeared in the Lagoon Rodrigo de Freitas lagoon.
article_snippet.sent: With just over a year to go before Rio de Janeiro hosts the Games' rowing and canoe competitions, officials with the legislative assembly of Rio de Janeiro Monday launched an investigation into the causes of death both in the Rodrigo de Freitas lagoon and in other lakes and bays in the state in which this phenomenon has occurred.
article_snippet.sent: Officials defended the belief that the latest rains caused a temperature change of the water and the excess of decaying organic matter, which would have led to a black of oxygen, killing the fish.
article_snippet.sent: The note released by officials highlighted that the amount of dead fish has generated a bad smell and inconvenience to those who live near the lagoon and all the tourists who flock to the area.
article_snippet.sent: Rio de Janeiro has pledged to reduce pollution in Guanabara Bay, but last month in an interview with the country's largest sports channel  SporTV, Mayor Eduardo Paes admitted that Guanabara Bay will remain mostly polluted for the games.
article_snippet.sent: Last year biologists said rivers leading into Guanabara Bay contained a superbacteria that is resistant to antibiotics and can cause urinary, gastrointestinal and pulmonary infections.
highlights_snippet.sent: Officials start to clean up scores of dead fish from the Lagoon Rodrigo de Freitas .
  