"It is the rarest of stories. A fix for an environmental disaster that is actually working.

Oil spill after oil spill has turned the Niger Delta, in southern Nigeria, into one of the most polluted places on Earth.

It's extremely dangerous - militant groups blow up pipelines, oil companies are accused of negligence, kidnappings are growing - and there's deep mistrust of outsiders.

In a land soaked in oil and scorched by fires, one scientist, Eucharia Nwaichi, comes armed with knowledge and a calm but unshakeable determination to detoxify."

Georgina Rannard reports for BBC News October 30, 2022. [2]