La pérdida de hielo del noreste de Groenlandia se está acelerando

Iagua | 2014-03-17

La última porción estable restante de la capa de hielo de Groenlandia ya no es estable, ha descubierto un equipo internacional de científicos. El hallazgo probablemente impulsará las estimaciones del aumento del nivel global del mar que se espera en el futuro. El nuevo resultado se centra en la pérdida de hielo debido a un importante retroceso de una toma de corriente glaciar conectado con un "río" de hielo - conocida como una corriente de hielo - que drena hielo desde el interior de la capa de hielo. La corriente de hielo Zachariae retiró a unos 20 kilómetros (12,4 millas) en la última década, los investigadores concluyeron. Para la comparación, uno de los glaciares más rápido en movimiento, el flujo de hielo Jakobshavn en el suroeste de Groenlandia, ha retrocedido de 35 kilómetros (21,7 millas) en los últimos 150 años.

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CO2 Reshaping the Planet, Meta-Analysis Confirms

IPS News Agency | United States | 2013-10-03

ANTES, France, Sep 27 2013 (IPS) - Greenland will eventually truly become green as most of its massive ice sheet is destined to melt, the authoritative U.N. Intergovernmental Panel on Climate Change (IPCC) reported Friday. The IPCC's new 36-page summary of the latest science includes a warning that there is a 20-percent chance the massive Greenland ice sheet will begin an irreversible meltdown with only 0.2 degrees C of additional warming. That amount of additional warming is now certain. However, it would take 1,000 years for all the ice to melt.    

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Race Is On as Ice Melt Reveals Arctic Treasures

The New York Times | Greenland | 2012-09-25

NUUK, Greenland — With Arctic ice melting at record pace, the world's superpowers are increasingly jockeying for political influence and economic position in outposts like this one, previously regarded as barren wastelands. At stake are the Arctic's abundant supplies of oil, gas and minerals that are, thanks to climate change, becoming newly accessible along with increasingly navigable polar shipping shortcuts. This year, China has become a far more aggressive player in this frigid field, experts say, provoking alarm among Western powers. While the United States, Russia and several nations of the European Union have Arctic territory, China has none, and as a result, has been deploying its wealth and diplomatic clout to secure toeholds in the region. “The Arctic has risen rapidly on China's foreign policy agenda in the past two years,” said Linda Jakobson, East Asia program director at the Lowy Institute for International Policy in...

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