Ca�da del glaciar Perito Moreno Imagen: Agencias / Internet
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El glaciar Perito Moreno es compartido por Argentina y Chile y se extiende sobre el Brazo Sur del Lago Argentino, con un frente de cinco kil�metros de longitud y sesenta metros de altura, siendo este uno de los glaciares m�s imponentes del mundo. El Glaciar Perito Moreno tiene una velocidad medida, a unos 4 km del frente, de aproximadamente 2 m por d�a, alrededor de 700 m por a�o.
Este glaciar al represar las aguas del Lago Argentino provoca el aumento de nivel de las aguas del lago las cuales erocionan el frente del glaciar. Ensto crea un t�nel con una b�veda de m�s de 50 metros por el que las aguas del Brazo Rico descienden hasta el Lago Argentino, la erosi�n causada por el agua provoca finalmente el derrumbe de la b�veda, en uno de los espect�culos m�s imponentes que puedan presenciarse. Este es un fen�meno natural no el resultado del supuesto calentamiento global.
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