Time of the Great Freeze

First edition, Cover art by Brinton Turkle

Time of the Great Freeze is a science fiction novel by American author Robert Silverberg, first published by Holt, Rinehart and Winston in 1964. The novel concerns a group of explorers, living in an underground city somewhere in North America three hundred years after an environmental catastrophe has triggered a new Ice Age. They decide to leave their haven after making contact with London via radio transmissions. Once on the surface, they set out across the mostly frozen wasteland of North America, and eventually across the icy surface of the Atlantic Ocean, and along the way encounter descendants of survivors of the original catastrophe who were unable to seek refuge underground.

References

Time of the Great Freeze entry on Majipoor.com.

Bibliography of Robert Silverberg
Novels	Revolt on Alpha C The Shrouded Planet Starman's Quest The Dawning Light Collision Course The Seed of Earth Time of the Great Freeze Conquerors from the Darkness The Gate of Worlds Planet of Death Thorns Those Who Watch The Time Hoppers The Man in the Maze Hawksbill Station The Masks of Time Downward to the Earth Across a Billion Years Nightwings To Live Again Up the Line Tower of Glass Son of Man The Second Trip The World Inside A Time of Changes The Book of Skulls Dying Inside Shadrach in the Furnace Gilgamesh the King Gilgamesh in the Outback Nightfall The Face of the Waters Kingdoms of the Wall The Positronic Man Starborne Roma Eterna
Short story collections	Lest We Forget Thee Earth The Cube Root of Uncertainty
Anthologies edited	The Science Fiction Hall of Fame Volume One, 1929-1964 New Dimensions 1 The Science Fiction Hall of Fame, Volume Two Epoch Strange Gifts Alpha 1 Alpha 2 Alpha 3 Alpha 4 Alpha 5 Alpha 6 Alpha 7 Alpha 8 Alpha 9 Dawn of Time The Best of Randall Garrett Legends Legends II Far Horizons Deep Space: Eight Stories of Science Fiction
Non-fiction	Lost Cities and Vanished Civilizations