Oiapoque: Indigenous chief Wagner Karipuna gazes worriedly at the tranquil river flowing past his village in the Brazilian Amazon as he imagines the nightmare scenario of an oil spill being carried here by the tides.
His village, Manga, is located around 20 kilometers (12 miles) from the center of Oiapoque, a town bordering French Guiana that has been buzzing since Brazilian oil giant Petrobras began offshore exploration in the region a year ago.
