The indirect effect is that it can "pre-condition" the ice shelves that float at the edges of the ice sheet.
BBC: West Antarctic Ice Sheet warming twice earlier estimate
He splashed over to the foot of the stairs and looked up at a ladder of water coming down, a scrim of ice on the edges like a mountain stream.
NEWYORKER: Idols
"A race is going on in Greenland between these competing forces of snow build-up in the interior and ice loss on the edges, " explained Dr Zwally.
BBC: NEWS | Science/Nature | Polar ice sheets show net loss
To the west are the saw-edges of glacier-encrusted rock and ice, serrated by more than 30 jagged peaks heavy with snow, the highest of which is 6, 768m-high Huascaran, the tallest mountain in the tropics.
BBC: Trekking Peru��s Santa Cruz trail
The conclusion, combining data and models, was that the Greenland ice sheet is relatively stable in the centre, but thinning slowly at the edges.
ECONOMIST: Climate change (II)
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