Original Airdate: January 31, 1978

Episode 0774 "The Ice Palace"

Written by Percy Granger, Directed by Himan Brown, Host: E.G. Marshall

What a fragile species mankind. really is. We're not nearly so swift or agile as many of our lesser cousins, and consider our vulnerability to shifts in the temperature. On a spectrum that ranges from 12,000 degrees, the temperature of the sun, to the bitter, chilling void of outer space, we can survive unaided only in a microscopic span of less than 70 degrees.

The Arctic regions are a permanent reminder of one of the most dramatic periods in the Earth's history. The ice age. Some scientists claim the Earth is cooling down and another ice age is on the way. Others say the Earth is still warming up. And if the tren ...