For the past five months I've walked back and forth to the barn over a sheet of polar ice.

The area was probably covered by polar ice at that time.

Otherwise some morning perhaps they look out their door and find polar ice or mountains of the moon.

The seas were relatively warm, and polar ice was absent for much of the period.

Neither of these complications exist in polar ice, he said.

Now he was passing the long, merciless winter on the polar ice.

She could see the accusation in his eyes that were cold, polar ice.

The amount of polar ice had receded to 2005 levels in August 2008.

The average thickness of polar ice during the summer months is believed to be a bit more than six feet.

His eyes, the cold blue of polar ice, bored into me.