It's going to take at least 25 years to restore the health of Ogoniland back to pre-oil days.

至少需要25年的时间才可能使奥戈尼兰的环境恢复到石油污染以前的水平。

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The United Nations Environment Programme over 14 months has toured the length and breadth of Ogoniland to assess the oil pollution.

联合国环境规划署在超过14个月的时间内走访了整个奥戈尼兰，评估石油污染的严重性。

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Shell pulled out of Ogoniland under pressure from the Movement for the Survival of the Ogoni People (MOSOP), founded by a writer, Ken Saro-Wiwa.

壳牌迫于来自奥戈尼人民生存运动的压力而撤出了奥戈尼地区，此运动是由一名叫肯萨罗·维瓦的作家创立的。

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Mr Saro-Wiwa had led a successful campaign against Shell's activities in his homeland, even forcing the company to quit Ogoniland in 1993.

ECONOMIST: A payout could encourage others

In response to Thursday's report, Mr Sunmonu said it made a "contribution towards improving understanding of the issue of oil spills in Ogoniland".

BBC: Nigeria Ogoniland oil clean-up 'could take 30 years'

The campaign forced Shell to stop pumping oil out of Ogoniland but it continues to operate pipelines in the region and spills have continued.

BBC: Nigeria Ogoniland oil clean-up 'could take 30 years'