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