France, Aug. 1 -- Shell must answer for decades of pollution in the Niger Delta after internal company documents revealed broken rules, failing infrastructure and unresolved clean-up costs that risk leaving affected communities to pay the price, a coalition of human rights and environmental organisations, including Amnesty International, said this week in a report.

The report, titled Nigeria: Lifting the Lid, analyses internal Shell emails, audits, presentations and confidential reviews disclosed in UK legal proceedings which reveal a wider human rights scandal than previously reported.

Mark Dummet, a researcher at Amnesty International, told RFI environment reporter Jeanne Richard that "the internal audit lists problem after problem re...