United nation's report of 2011 documented the environment of the Niger Delta is so polluted that it could take 25 to 30 years to reverse the associated sustainability consequences of the pollution.A catastrophic spill occurred on May 1, 2010 at an ExxonMobil offshore oil platform approximately  from shore.. 
ṣúà, ti awon ẹya miran mo si Mansowọ́ tabi kuntete, je ede Niger-Congo kan ti won n so ni agbegbe manfìyà ti orile ede Guinea-Bissau.Awon itọkasi.. 