GUIENA
A Canadian mining company has been dumping cyanide, mercury and copper into Guyana's biggest river, the Essequibo, alleges the Guyana Shield Media Project (gsmp), a group that disseminates information about environmental issues. According to some media reports, people have been seen vomiting after consuming the river water. The gsmp says that officials of Cambior, the mining company, admitted that they regularly dumped these chemicals into the Essequibo, claiming that the chemicals released were in