Agence France-Presse: The sign -- "risk of drowning" -- outside one of Rio de Janeiro's freshwater reservoirs looks like a joke: there's no water here left to drown in.
Instead, the Saracuruna reservoir near Duque de Caxias, outside Rio, is an expanse of sand, mud and vegetation. Four stray dogs scamper and cattle come to drink from a stream still running through the middle.
"It's been a long time since there was any water here," said a security guard walking up the dry bed to order AFP journalists away on Friday....