Argentina’s Congress approves bill easing glacier protections for mining

Argentina’s Congress Approves Controversial Mining Reform, Easing Glacier Protections

Argentina’s Congress has approved a controversial bill that relaxes protections on glaciers to facilitate mining investments, a key legislative victory for libertarian President Javier Milei despite fierce opposition from environmental groups who are now preparing legal challenges.

The legislation, which passed Thursday with 137 votes in favor, 111 against, and three abstentions, had already cleared the Senate in February. President Milei is expected to sign the bill into law within days, fulfilling another promise in his market-friendly reform agenda.

Mining industry representatives project the new regulatory framework could unlock more than $30 billion in investments over the next decade. Approximately 70 percent of those funds would target new copper, gold, and silver projects—resources that have remained largely untapped under previous restrictions.

“This represents a significant improvement that will help strike a balance between environmental protection and economic development,” Milei’s party stated in a message the president shared on his X account, adding that the reform moves away from “an approach that tended to stifle investment, job creation and growth.”

The legislation marks a substantial shift from Argentina’s landmark 2010 law, which established some of Latin America’s strictest protections for glacial and periglacial environments. The original law banned all mining activity on glaciers and within periglacial zones—areas of permanently frozen ground that play crucial roles in water regulation.

Under the new framework, protections will be narrowed to cover only glaciers and landforms with “specific hydrological functions,” with provincial governments given authority to determine which areas meet these criteria. This decentralized approach represents a significant departure from the previous blanket protections.

Mining Secretary Luis Lucero defended the changes in a recent radio interview, arguing that the previous regulation featured “absolute prohibitions without room for exceptions or environmental impact studies.” According to Lucero, imprecise definitions of protected areas had discouraged large-scale mining investments, which typically require up to $3 billion in capital.

Argentina’s Andes Mountain Range and South Atlantic Islands contain 16,968 documented glaciers covering 8,484 square kilometers (3,276 square miles). These glaciers serve as crucial water reservoirs, particularly in the country’s more arid regions where they sustain river flows during dry seasons.

Environmental organizations, including Greenpeace and the Environment and Natural Resources Foundation, have vowed to challenge the legislation through the courts. They are organizing a class-action lawsuit arguing that the bill’s passage followed a flawed process that dismissed public concerns about water security.

“If they refuse to listen in Congress, they will be forced to listen in the courts,” the organizations declared in a joint statement, urging citizens to join their legal challenge. Their lawsuit contends the reform threatens both water access and fragile ecosystems surrounding glacial environments.

Opposition lawmakers have branded the legislation unconstitutional, arguing it rolls back essential environmental safeguards at a time when climate change is already accelerating glacier retreat across the region. Glaciology experts warn that weakening these protections could jeopardize water security in regions dependent on glacial melt.

The mining reform represents another step in Milei’s broader economic liberalization agenda. Since taking office in December 2023, the libertarian economist has pushed a series of market-friendly reforms aimed at attracting foreign investment and revitalizing Argentina’s struggling economy, which has suffered from chronic inflation and limited growth.

The debate highlights the tension between Argentina’s ambitions to develop its abundant natural resources and concerns about environmental preservation. For mining companies, the legislation potentially unlocks previously inaccessible mineral deposits in the resource-rich Andean regions. For environmental advocates, it represents a dangerous precedent that could threaten vital water resources in a region already facing climate challenges.

As Milei prepares to sign the bill, both industry observers and environmental groups are watching closely to see how implementation will unfold across Argentina’s diverse provinces, each with varying degrees of environmental regulations and mining traditions.