Pedzisa mutsara unotevera:
21st Conference of the Parties (COP21) muParis, Idriss Déby akasimudza nyaya yeLake Chad, ine nzvimbo yaive chidimbu chiduku chezvaive muna 1973, uye yakadana sangano renyika dzakawanda kuti ripe mari yekudzivirira ecosystem.