The new U.N. report on the extent of longstanding massive oil pollution in the Niger Delta comes just as Shell has accepted responsibility for two devastating oil spills in the Ogoniland region and agreed to settle claims. According to The Guardian of London, Shell faces a bill of hundreds of millions of dollars for its role in an oil spill that could match the size of the Exxon Valdez disaster in Alaska. Shell had previously maintained just 40,000 gallons of oil had leaked into Nigerian waters. But the spill could be as large as 10 million gallons.