This incredibly well-endowed ecosystem contains one of the highest concentrations of biodiversity on the planet, in addition to supporting abundant flora and fauna, arable terrain that can sustain a wide variety of crops, lumber or agricultural trees, and more species of freshwater fish than any ecosystem in West Africa. The region could experience a loss of 40% of its inhabitable terrain in the next thirty years as a result of extensive dam construction in the region. The advent of oil production has also negatively impacted the Niger Delta region due to unprecedented oil spillage which has been ongoing for the past 5 decades making the region one of the most polluted in the world. It is estimated that while the European Union experienced 10 incidences of oil spills in 40 years, Nigeria recorded 9,343 cases within 10 years. The carelessness of the oil industry has also precipitated this situation, which can perhaps be best encapsulated by a 1983 report issued by the NNPC, long before popular unrest surfaced: