Nigeria's agony dwarfs the Gulf oil spill. The US and Europe ignore it | World news | The Observer
http://www.guardian.co.uk/world/2010/may/30/oil-spills-nigeria-niger-delta-shell

With interesting comments.

"If this Gulf accident had happened in Nigeria, neither the government nor the company would have paid much attention," said the writer Ben Ikari, a member of the Ogoni people. "This kind of spill happens all the time in the delta."

The Deepwater Horizon disaster caused headlines around the world, yet the people who live in the Niger delta have had to live with environmental catastrophes for decades