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22 februari 2012

Aarde verliest vijfhonderd miljard ton ijs per jaar

Global Ice Loss from 2003-2010 Could “Cover the Entire United States in One and Half Feet of Water”
Climate Progress and NASA,
22 februari / 7 februari 2012

[...] 'Earth is losing a huge amount of ice to the ocean annually, and these new results will help us answer important questions in terms of both sea rise and how the planet’s cold regions are responding to global change', said University of Colorado Boulder physics professor John Wahr, who helped lead the study. 'The strength of GRACE is it sees all the mass in the system, even though its resolution is not high enough to allow us to determine separate contributions from each individual glacier.'

About a quarter of the average annual ice loss came from glaciers and ice caps outside of Greenland and Antarctica (roughly 148 billion tons, or 39 cubic miles). Ice loss from Greenland and Antarctica and their peripheral ice caps and glaciers averaged 385 billion tons (100 cubic miles) a year. Results of the study [...] [have been] published online Feb. 8 in the journal Nature.

Toevoegingen na 1 maart:

West Antarctica Warming Three Times Faster Than Global Average, Threatening To Destabilize This Unstable Ice Sheet
Door NCAR / Climate Progress, 27 december 2012

Why The Arctic Sea Ice Death Spiral Matters
Door Neven Acropolis with Kevin McKinney, Climate Progress, 26 augustus 2012

Unprecedented May Heat In Greenland, Temperature Hits Stunning 76.6°F [24,8°C]
Door Jeff Masters, WunderBlog / ClimateProgress, 4 juni 2012 

Arctic melt releasing ancient methane
Door Richard Black, BBC News, 20 mei 2012

Arctic Death Spiral: More Bad News About Sea Ice
Door Michael D. Lemonick, Climate Central / Climate Progress, 17 mei 2012

The Arctic Death Spiral Continues: Thick, Multi-Year Sea Ice Melting Faster, NASA Study Finds
Door Joe Romm, Climate Progress, 1 maart 2012

“The average thickness of the Arctic sea ice cover is declining because it is rapidly losing its thick component, the multi-year ice. At the same time, the surface temperature in the Arctic is going up, which results in a shorter ice-forming season,” explains NASA senior scientist Joey Comiso.

Great Lakes Ice Cover Down 71% Since 1973
Door Jeff Masters, Wunderblog / Climate Progress, 31 maart 2012

Zie ook m'n blognotities:
IJskap Noordpool smelt tot kleinste omvang ooit gemeten
Zeespiegel van ijsvrije aarde
'IJskap Groenland over tien jaar niet meer te redden'
Studie: Noordpool-ijs kan over 30 jaar zijn verdwenen
Reusachtig stuk ijs breekt af van Antarctica
Zuidpool verliest sneller ijs dan voorspeld
IJskappen smelten mogelijk sneller dan gedacht
IJskappen smelten snel

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