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Friday, January 30, 2009

Glaciers worldwide lost ice

Glaciers worldwide lost ice mass for the 18th consecutive year due to warming temperatures and reduce snowfall, reports the University of Zurich’s World Glacier Monitoring Service.

Alpine glaciers lost on average 1.3 meters of thickness in 2006 and 0.7 meters in 2007, extending an 11.3-meter (36-foot) retreat since 1980. The pace melting has more than doubled since the 1990s.

The World Glacier Monitoring Service has tracked the status of 30 glaciers in nine mountain ranges since 1980, but monitors 80 to 100 today. There are 150,000 to 200,000 glaciers worldwide.

Glaciers are melting particularly quickly in the Alps. The most extensive melt recorded for reference glaciers in 2007 was Careser in the Italian Alps.

By some estimates 80 percent of the glaciers in the Alps may disappear by the end of the century, while Africa's glaciers could be gone by 2025.

The environmental consequences of melting glaciers are significant. Glaciers store massive amounts of water and their disappearance puts water supplies and agriculture in many regions at risk. Further, glacial melt is the largest contributor to rising sea levels according to a study published in Science in July 2007.





From

http://news.mongabay.com/



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