Environmental issues in the Niger Delta Wikipedia
The key environmental issues in the Niger Delta of Nigeria relate to its petroleum and industry.. The delta covers 20,000 km² within wetlands of 70,000 km² formed primarily by sediment deposition. Home to 20 million people and 40 different ethnic groups, this floodplain makes up % of Nigeria''s total land mass. It is the largest wetland and maintains the thirdlargest drainage basin in Africa.