| 1. | "There are animals here that are uniquely adapted to that ice cover.
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| 2. | "Earth's ice cover is melting at an astonishing rate, " it says.
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| 3. | This was done immediately after the ice cover melted on the sea.
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| 4. | Water is lost through sublimation and ablation of the ice cover.
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| 5. | Fish die-offs have been directly associated with thermal gradients, stagnation, and ice cover.
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| 6. | Consequently, the southern margin of Ur is now below the Antarctic ice cover.
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| 7. | The final ice cover came from the northeast and mostly deposited limestone erratics.
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| 8. | The ice cover exhibits much greater regional-scale interannual variability than it does hemispherical.
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| 9. | Summer ice cover in the Arctic is about 50 % of winter cover.
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| 10. | Freed from the ice cover, wildlife can prosper in these " polynyas ."
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