As the COP30 climate summit opens in the Brazilian Amazon city of Belem, Brazil is stepping up its race for oil. The government agency in charge of environmental protection recently authorised oil giant Petrobras to drill several oil wells at the mouth of the Amazon River. Environmental protection groups predict the move will lead to an ecological and social disaster. But on the border with French Guiana, many in the town of Oiapoque are eagerly awaiting the oil. FRANCE 24's Marine Resse, Fanny Lothaire and Jan Onoszko report.