1.   If the Arctic sea ice were to one day disappear, it would cause drastic changes in the climate of the Northern Hemisphere.

2.   Life on Arctic sea ice demands an enormous variety of skills, including the ability to drive hard bargains and scrounge for equipment.

3.   No Italian trees in sight in this heavily computerized vision of flying whales romping through arctic seas and skies.

4.   The Colorado-based National Snow and Ice Data Center says arctic sea ice has thinned significantly as temperatures have warmed.

5.   These bravos jump from airplanes, rappel out of helicopters, and snatch foolish adventurers off of mountains and out of churning arctic seas.

6.   Already, the extent and thickness of Arctic sea ice have decreased, permafrost has thawed and the distribution and abundance of many species has been effected.

7.   Already, the extent and thickness of Arctic sea ice have decreased, permafrost has thawed and the distribution and abundance of species has been effected.