+Sea ice is frozen seawater, a vast, dynamic skin on the [Ocean](/wiki/ocean) in Earth's polar regions. It breathes with the seasons, growing in [Winter](/wiki/winter) and retreating in summer, profoundly influencing global [Climate](/wiki/climate).
+## See also
+- [Glacier](/wiki/glacier)
+- [Arctic](/wiki/arctic)
+- [Climate Change](/wiki/climate_change)
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