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Argentina passes bill loosening protection of its glaciers
April 9, 2026 International Source: BBC World
The new bill will make it easier for provincial governments to allow mining projects in glacier regions.
Argentina passes bill loosening protection of its glaciers
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Read about our approach to external linking.
Protesters against the bill held signs outside congress which said: "La Ley de Glaciares no se toca" [hands off the glacier law]
Large cardboard cut-outs of glaciers in front of Argentina's national congress
Argentina's Congress has passed a controversial amendment making it easier to mine in glacier regions, a move environmentalists say weakens protections for crucial water sources.
The pioneering Glacier Law, approved in 2010, prohibited all mining and exploration activities in glacier regions by protecting them as water reserves.
The reform shifts the responsibility of defining protected glacier areas from the Argentine Institute for Snow, Ice and Environmental Sciences (Ianigla) to the provincial governments.
President Javier Milei, who backed the reform, said the change "empower[s] the provinces to utilise their resources" and allows mining activities "where there was nothing to protect".
The reform has proven divisive, with those opposed organising protest rallies
A woman holds a sign at a protest which says in Spanish 'without water there are no jobs, hands off the glacier law'
Argentina's Senate had already approved the bill in February 2026, so approval by the lower house was the last major hurdle left.
Opponents of the reform argued that it would put a fundamental resource - water - at risk. "Without water, we can't even think about a growth and development project," Congresswoman Natalia de la Sota said.
But a backer of the bill, Congresswoman Nancy Picón Martínez, said that the mining industry was being portrayed "as if it were a monster".
"This law protects glaciers, no matter how much some people want us to believe otherwise," she said.
Following the reform, glaciers and periglacial environments - which may not be covered by ice but are frozen at least part of the year- will be protected by the national Ianigla inventory until provincial leaders prove they do not serve as "strategic" water reserves.
There are 16, 968 glaciers in Argentina, providing water to 36 river basins across 12 provinces, home to seven million people.
Water from melted glaciers helps to reduce the impact of droughts - especially in semi-arid provinces like Mendoza - which are becoming more common due to climate change.
Water from melted glaciers helps to reduce the impact of droughts - especially in semi-arid provinces like Mendoza -
which are becoming more common due to climate change.
A map of Argentina showing the number of glaciers in each province using blue circles sized by count. The largest concentrations are along the Andes and Patagonia, led by San Juan (4,572 glaciers), Mendoza (4,172), Santa Cruz (2,420), Chubut (1,471), and Tierra del Fuego (1,331). Other labeled provinces include Catamarca (691), Salta (646), Neuquén (519), La Rioja (496), Río Negro (271), Jujuy (255), and Tucumán (122). The title states that Argentina has over 16,000 glaciers in total.
Governors from the mineral-rich provinces of Catamarca, Jujuy, Salta, Mendoza and San Juan had expressed their support for the bill, stating that the 2010 Glacier law hindered the goal of "promoting a sustainable economic development of the provinces and the Nation without compromising future generations".
But Greenpeace has criticised the bill for arguing that not all glaciers and periglacial environments act as strategic water reserves.
"The primary function of all glaciers and the entire periglacial environment is to act as a freshwater reservoir," Agostina Rossi Serra, a biologist working with Greenpeace said.
"The periglacial environment, apart from being water reserves because they consist of water inside, undergoes a gradual thaw that feeds the rivers and streams of our country," she explains.
"And a large part of our country, especially the regions that were keen to see this law amended, are arid and semi-arid areas, where water is a scarce resource," Rossi Serra added.
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