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Experts say part of the glacier can be broken at the Grandes Jorasses peak
After experts warned that some of Mont Blanc's glaciers could fall, Italian authorities closed down the roads and withdrew the cabins.
About 250,000 cubic meters of ice are at risk of falling off the Planpincieux glacier on the Grandes Jorasses peak, officials said.
Mayor Coumayeur, a nearby village, said that global warming is changing the mountains.
Mont Blanc Massif is the highest mountain range in Western Europe.
There are more than 4,000 meters of 11 peaks in France and Italy, attracting hundreds of thousands of tourists each year.
On Tuesday, Mayor Courmayeur Stefano Fine Roach signed an order to close the Val Ferret road to Mont Blanc Italy.
He says there are no threats to residential areas or tourist facilities, but he is evacuating cabins in the Rochefort area as a preventive measure.
"This is once again showing how mountains are undergoing major periods of change due to climate factors," Prime Minister Fine Roach said.
Experts from the Valle d'Aosta local government and the Von Dazione Monta Gnakkura (Safeda Foundation) say that it is impossible to predict exactly when the ice mass will collapse.
As global temperatures rise, mountain glaciers are melting and arctic glaciers are retreating.
Earlier this month, dozens took part in the "funeral march" to announce the disappearance of the Pizol glacier in northeastern Switzerland.
Glarus Alps glaciers have been reduced to smaller portions of their original size.
Scientists say they have lost more than 80{7be40b84a6a43fc4fae13304fce9a2695859798abfc41afd127b9f8b21c5f9c5} since 2006, a trend that is accelerated by rising global temperatures.