Key Points
— Argentina’s Chamber of Deputies approved the reform of the Glacier Law on Wednesday, delegating to provinces the power to decide which of the country’s nearly 17,000 ice bodies to protect and which to open for mining
— The vote hands Milei his first legislative victory of the year after a month dominated by corruption scandals — and gives mining companies access to Andean areas that had been off-limits since 2010
— Opposition lawmakers announced immediate court challenges, warning the reform is unconstitutional and will create legal uncertainty that deters the very investment it was designed to attract
The Argentina glacier law passed Wednesday night after a tense session in which the Adorni property scandal, the $LIBRA crypto collapse, and the future of Andean water reserves competed for airtime — delivering Milei’s ruling coalition a victory it needed badly after weeks of political damage, El País and Infobae reported.
The bill, which already had Senate approval from February 26, becomes law immediately. Under the new framework, provinces will evaluate each of Argentina’s nearly 17,000 glaciers and ice bodies — covering 8,484 square kilometers, an area 41 times the size of Buenos Aires — on a case-by-case basis. Only those deemed to serve an “effective hydrological function” will retain protection. The rest become available for extractive activities, including open-pit mining for copper, gold, silver, and lithium across the Andes.
What’s New Since Yesterday
The session itself became a showcase of Argentina’s political fractures. Government deputies argued the reform was essential for competitiveness — pointing out that Chile, which shares 5,000 kilometers of Andean border, generated over $60 billion in mining exports in 2025, ten times Argentina’s output. Opposition lawmakers countered that the original 2010 law never blocked mining investment and that delegating glacier protection to mining-friendly provincial governments is a conflict of interest. Former cabinet chief Miguel Ángel Pichetto warned that the constitutional questions would generate litigation and uncertainty — the opposite of what investors need.
The Adorni scandal — which our Session 14 coverage detailed — loomed over the debate. The opposition attempted to summon cabinet chief Adorni for questioning over unexplained property purchases, but the motion failed. Peronist deputy Juan Grabois captured the mood with a line that connected all of Milei’s vulnerabilities at once, calling the government’s scientific arguments less credible than Adorni’s mortgages and Milei’s cryptocurrency.
100,000 Tried to Be Heard
Perhaps the most striking number from the process was the public hearing: more than 100,000 people registered to participate — a record for any Argentine legislative proceeding. At five minutes per speaker, hearing them all would have taken 340 uninterrupted days. The Câmara asked them to submit written or video statements instead. Greenpeace delivered a petition with 67,000 signatures and hung banners on the Congressional monument reading “Don’t betray the Argentines.” Street protests accompanied the vote, but none changed the arithmetic that the government had locked in before the session began.
What Happens Next
The opposition confirmed it will challenge the law in court, arguing it violates constitutional environmental protections and the principle of non-regression in environmental law. Environmental organization Círculo de Políticas Ambientales called the reform unconstitutional and warned that a legislative process conducted without scientific evidence, transparency, or meaningful public participation cannot strengthen either water security or legal certainty. In 2019, the Supreme Court rejected a challenge from Barrick Gold and upheld the original law, ruling that glaciers are public goods and that collective water rights prevail over private interests. Whether the reformed version survives the same scrutiny will determine whether the $40 billion mining pipeline Milei is selling to international investors actually materializes — or becomes another Argentine promise tangled in courts.