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Argentina Passes Glacier Law Overhaul to Allow Mining in Glacier Regions

Provinces now set glacier rules, a shift likely to face court challenges over water risks.

A demonstrator participates in a protest outside the National Congress as deputies discuss the new Glaciers law, promoted by Argentine President Javier Milei, calling on the provinces to redefine glacier protection zones to expand mining operations, in Buenos Aires, Argentina April 8, 2026. REUTERS/Agustin Marcarian
A pedestrian walks past graffiti reading "No to mining in glaciers" outside the National Congress as deputies discuss the new Glaciers law, promoted by Argentine President Javier Milei, which calls on the provinces to redefine glacier protection zones to expand mining operations, in Buenos Aires, Argentina, April 8, 2026. REUTERS/Agustin Marcarian
Demonstrators protest outside Congress as lawmakers debate the Javier Milei government's proposal to reform the glacier protection law in Buenos Aires, Argentina, Wednesday, April 8, 2026. (AP Photo/Rodrigo Abd)
Demonstrators protest outside Congress as lawmakers debate the Javier Milei government's proposal to reform the glacier protection law in Buenos Aires, Argentina, Wednesday, April 8, 2026. (AP Photo/Rodrigo Abd)

Overview

  • Argentina's Chamber of Deputies approved the reform early Thursday in a 137–111 vote with three abstentions, and it will take effect once it is published in the official gazette.
  • The law shifts key decisions from a national scientific system to provincial authorities, narrows which ice bodies get protection, and makes the National Glacier Inventory nonbinding.
  • Thousands protested outside Congress during the debate as police made several arrests, and groups including Greenpeace and the Environment and Natural Resources Foundation said they will file a class-action suit.
  • Provincial governors and mining firms argue the change brings legal certainty for copper and lithium projects, with a Central Bank projection suggesting mining exports could triple by 2030.
  • Scientists warn the rollback threatens water supplies in arid regions, noting Argentina has nearly 17,000 glaciers and that northwestern glacial reserves shrank about 17% over the past decade.