Mercury poisoning can be found almost anywhere, including places considered remote, like the Amazon River basin in Brazil.

CNN: Tomorrow Today

Chevron miscalculated its drilling of its Frade field last November, an oil well just under the ocean floor in the Santos Basin in Brazil, about 70 kilometers off coastal Rio de Janeiro.

FORBES: For Brazil Oil Spill, Chevron Gets A Discount

In Brazil, Anadarko has assets in the Campos Basin, where Wahoo and Itaipu are its biggest discoveries.

FORBES: Anadarko's Future Looks Bright As Major Projects Are On Track

Not since a military government quartered the Amazon basin with roads, dams and settlements in the 1970s has Brazil seen such a row over the rainforest.

ECONOMIST: Energy in Brazil

Language, geography and history have combined to isolate Brazil from its Spanish-speaking neighbours on the far side of the Amazon rainforest and the Parana basin, let alone from the wider world.

ECONOMIST: Brazil��s 500 years of solitude