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The most recent measurements from this summer put the rift at miles km long, with the now-calved iceberg hanging on by a thread; just 3 miles 5 km of ice connected it with the rest of the ice shelf. Even though the towering berg weighs more than 1.

That's because the ice was already floating on the sea. Even so, when an iceberg like this one calves, it can speed up the collapse of the rest of the ice shelf — the new iceberg reduced the area of the Larsen C ice shelf by 12 percent. Also, the ice shelf serves as a barrier to the land-based glacier that feeds the ice shelf; as that barrier diminishes, there's more of a chance for the ice behind it to collapse into the sea, MIDAS researchers said.

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We're going to be watching very carefully for signs that the rest of the shelf is becoming unstable. Some of the ice may remain in the area for decades, while parts of the iceberg may drift north into warmer waters. Editor's Note: This article was updated to clarify when the rift in the ice sheet first showed up.

Greenland Lost 4 Trillion Pounds Of Ice In Just 1 Day

Whilst this new iceberg will not immediately raise sea levels, if the shelf loses much more of its area, it could result in glaciers that flow off the land behind speeding up their passage towards the ocean. This non-floating ice would have an eventual impact on sea levels, but only at a very modest rate. Materials provided by Swansea University. Note: Content may be edited for style and length. Science News. The iceberg, which is likely to be named A68, weighs more than a trillion tonnes.

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Its volume is twice that of Lake Erie, one of the Great Lakes. Story Source: Materials provided by Swansea University. ScienceDaily, 12 July Swansea University. The one trillion ton iceberg: Larsen C Ice Shelf rift finally breaks through.

Trillionth Tonne

Retrieved November 15, from www. While Larsen C has received much attention due to the The main Satellite observations from December show a growing crack in the ice shelf which suggests that an Below are relevant articles that may interest you. ScienceDaily shares links with scholarly publications in the TrendMD network and earns revenue from third-party advertisers, where indicated. Boy or Girl?

Trillion ton iceberg prepares to break off Antartica

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