Global Glacier Decline

The World Glacier Monitoring Service‘s latest report shows that, based on data from 30 glaciers spread in nine mountainous regions of the world, glacier mass balance is negative (i.e. glacier melt exceeds ice formation) and the average mass balance is declining (i.e. more ice is melting each year).

Glacier Mass Loss

Figure 1a and 1b: Mean cumulative specific net balance (top) and mean annual specific net balance (bottom) from continuously measured on 30 glaciers in 9 mountain ranges for the period 1980-2004, on 29 glaciers in 9 mountain ranges for 2005, and on 27 glaciers in 8 mountain ranges for 2006. (see World Glacier Monitoring Service).

Andy Revkin comments on the report in Farewell to Ice on his weblog, and the USA’s National Snow and Ice Data Center host a collection of repeat photography of glaciers documenting their decline.

See also the previous post Arctic Sea ice at record low.

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