Environmental Pollution
            
            
            
            Thousands of fish have died in a main river in Sao Paulo due to illegal dumping of industrial waste from a sugar and ethanol plant.
            Key Points
- Illegal dumping of industrial waste from a sugar and ethanol plant led to the death of thousands of fish in Sao Paulo.
 - This is the second incident in a month where the river has been covered in dead fish due to pollution.