Things and Things and Things
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It is impossible to know how much oil is spilled in the Niger delta each year because the companies and the government keep that secret. However, two major independent investigations over the past four years suggest that as much is spilled at sea, in the swamps and on land every year as has been lost in the Gulf of Mexico so far.
Good lord. For those that thought the Gulf of Mexico oil spill was bad, this Guardian article on Nigerian oil catastrophes does not make for easy reading.