In Sign of Warming, 1,600 Years of Ice in Andes Melted in 25 Years
Glacial ice in the Peruvian Andes that took at least 1,600 years to form has melted in just 25 years, scientists reported Thursday, the latest indication that the recent spike in global temperatures has thrown the natural world out of balance.
The evidence comes from a remarkable find at the margins of the Quelccaya ice cap in Peru, the world’s largest tropical ice sheet. Rapid melting there in the modern era is uncovering plants that were locked in a deep freeze when the glacier advanced many thousands of years ago.
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The impacts of soot in the Bolivian glaciers
Durante los últimos 50 años Bolivia ha perdido aproximadamente la mitad de sus glaciares. El factor principal por el acelerado retroceso glaciar es el calentamiento global, causado por las emisiones de gases de efecto invernadero. Pero hay otro elemento que contribuye al derretimiento de los glaciares de montaña: depósitos de hollín de la quema de diesel y biomasa.
En la reciente reunión del Grupo de Trabajo PISAC (Pollution and its Impact on the South American Cryosphere) en La Paz, el investigador estadounidense Carl Schmitt presentó metodología y primeros resultados del análisis de muestras de nieve, para poder cuantificar el impacto de los depósitos de hollín en los glaciares de la Cordillera de los Andes.
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Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting
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Chile's Retreating San Quintín Glacier Viewed from Space
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The Cryosphere Imperative: Why Paris 2015 Must Succeed
For further information, please visit Cambio Climático Bolivia
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Antarctic summer ice melting 10 times faster
