Amnesty International stated on Thursday that the oil company Shell bears responsibility for cleaning up and remedying historic oil pollution in the Niger Delta, Nigeria, despite the company#8217;s divestment of its Nigerian subsidiary. The organization#8217;s statement follows a letter sent two months ago by seven UN Rapporteurs on Human Rights to Shell and other oil companies, as well as the governments of the companies#8217; home countries, regarding the businesses#8217; human rights obligations towards populations...