It is estimated that one fifth of all freshwater species either face extinction or are already extinct.
Ku vuriwa leswaku hafu ya mixaka yo karhi ya swiharhi swo tala leswi a swi kumeka eSahara, swi nga endleka leswaku swi lo namba swi nyamalala kumbe ku lo sala nhlayo leyitsongo swinene loko yi ringanisiwa ni ya khale.