Tuesday, March 8, 2011

Sobering news from Greenland and Antarctica

Melting of ice sheets in Antarctica and Greenland is accelerating, according to a new study to be published this month in Geophysical Research Letters. According to the research, this acceleration is three times faster than what is being observed for mountain glaciers and ice caps.
From the study:

The magnitude of the acceleration suggests that ice sheets will be the dominant contributors to sea level rise in forthcoming decades, and will likely exceed the IPCC projections for the contribution of ice sheets to sea level rise in the 21st century.

According to the new research, if melting of ice sheets continues at the current rate for the next 40 years, sea level rise from that source alone would equal 15 centimeters, or 5.9 inches by the year 2050. With ice loss from glaciers, ice caps and thermal expansion of the oceans also factored in, sea level could come up by a total of 32 centimeters, or 12.6 inches, by mid-century, according to the new research.

Read the rest:
Sobering news from Greenland and Antarctica

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