Thousands of people have demonstrated against the bill, which scientists and activists say threatens water resources.
Argentinian politicians have approved a bill earlier pushed by the country’s right-wing President Javier Milei that authorises mining in ecologically sensitive areas of glaciers and permafrost, a move that has outraged environmentalists.
The Chamber of Deputies, Argentina’s lower house of Congress, approved the amendment early on Thursday with 137 votes in favour, 111 against and three abstentions after nearly 12 hours of debate.