Trail of the Ice Age Blues

University of Waterloo Audiovisual Services Catalog.
"Canada as it is today owes much of its landscape to the slow movement of the vast sheets of ice that moved across this continent with irresistible force. Today, the ice has gone, with the exception of the great glaciers imprisoned in high, cold mountains where summer is short. The program moves from glacier-covered Greenland to Canada, and the narrator describes the advent and recession of the Ice Age while an animated map provides a pictorial history. Next, the different types of sculpting and residues left by the sheets of ice are analyzed. The ice has gone; what few remnants remain in the mountains await their final demise or rebirth. Since 1940, the world's annual mean temperature has been falling. A new Ice Age may be on its way, but this is uncertain. For now, we wait, living in the trail of the glaciers, or perhaps, in their future path."