Global oil giant Shell continued operating a compromised pipeline in Nigeria’s Niger Delta despite knowing it posed a pollution risk in the surrounding coastal wetland environment, newly disclosed internal company communications reveal. The emails and memos, reviewed by Mongabay, show senior leadership knew of the poor conditions of the 97-kilometer (60-mile) Nembe Creek Trunk Line as early as 2008. Despite concerns it was operating outside technical integrity standards and proposals to shut it down, a top executive decided to keep pumping oil through the line. Carrying 150,000 barrels of oil per day to the export terminal at Bonny Island Rivers state, the Nembe Creek Trunk Line is a critical oil artery in Nigeria. Throughout the years, theft from the pipeline using illegal connections caused spills into the vast mangrove ecosystem of true (Rhizophora sp.) and flowering black (Avicennia sp.) tree species. An internal 2013 Shell document coded such tampered lines as “red,” requiring either their immediate shutdown or immediate action to remove all illegal connections. Locals from the nearby riverine Bille community said the oil spills killed about 2,000 hectares (4,900 acres) of mangrove swamps around the village while impacting an area of 13,200 hectares (32,600 acres). The contaminated waterways and degraded ecosystem, they told Mongabay, killed fish and other aquatic life. Satellite imagery surrounding the village shows massive degradation of the mangroves. “The aquatic life is gone. Our people can no longer go to the river and catch reasonable fish — they can’t even find the fish in the…This article was originally published on Mongabay