Argentine Glacier Grows Despite Global Warming
By Newser Editors and Wire Services
Posted Jun 14, 2009 7:35 PM CDT
FILE - In this May 18, 2009 file photo, tourists walk on Perito Moreno Glacier in Los Glaciares National Park in Argentina's Patagonia region.    (Natacha Pisarenko)
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(Newser) – Argentina's Perito Moreno glacier is one of only a few ice fields worldwide that have withstood rising global temperatures. Nourished by Andean snowmelt, the glacier constantly grows even as it spawns icebergs the size of apartment buildings into a frigid lake, maintaining a nearly perfect equilibrium since measurements began more than a century ago. "We're not sure why this happens," one glacialist said.

Viewed at a safe distance on cruise boats or a wooden observation deck, Perito Moreno's jagged surface radiates a brilliant white and glows deep blue underwater. Water on one side surges until it breaks an ice wall up to 200 feet above lake level, creating a thunderous crash and eliciting applause from tourists. "The glacier has a lot of life," said a guide who leads tours over the glacier's snow fields.