Friday, May 4th 2012, 10:42 AM EDT
Greenland's glaciers are not speeding up as much as previously thought, researchers have estimated.
As a result, the ice rivers may be contributing "significantly less" to sea-level rise than had been thought.
Previous studies had estimated that the nation's glaciers would double their flow by 2010 and continue to maintain that speed, they explained
But the team, writing in Science, said the glaciers could eventually flow faster than earlier studies estimated.
The team of US researchers based their findings on data stretching back to 2000-2001, collected from more than 200 outlet glaciers.
"So far, on average, we are seeing about a 30% speed-up in 10 years," observed lead author Twila Moon from the University of Washington, Seattle.
This is less than earlier projections, one of which estimated that glacial flow would increase by 100% between 2000 and 2010 before stabilising at that new velocity.
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