| 11. | As the ice stream accelerates it is also getting steeper.
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| 12. | Ice streams such as the Erebus Ice Tongue wax and wane like the moon.
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| 13. | The alternating ice stream is more than just a curiosity.
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| 14. | Melting of the ice shelves in turn causes the ice streams to speed up.
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| 15. | The Pine Island and Thwaites glaciers are two of Antarctica's five largest ice streams.
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| 16. | Buried volcanoes, some scientists believe, may be hastening the travel of the Antarctic ice streams.
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| 17. | In some circumstances, ice can flow faster in ice streams, separated by slow-flowing ice ridges.
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| 18. | They are Antarctica's ice streams, its Amazons and Mississippis.
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| 19. | One Ross ice stream stopped flowing 150 years ago.
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| 20. | Because of this the ice stream position may have been stable for millions of years.
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