Fallen angels

As the world reels under the sudden onslaught of the new ice age, the lunatic fringe of the environmental movement controls the U.S. government. Abandoned by Earth, the space colonies must replenish their air supply by scoopships diving into the atmosphere—but Alex and Gordon's ship was hit by a missile, sending them tumbling out of the sky to be hunted by authorities who want them dead or alive. . . . But wait! There is one pro-tech group left on Earth: science fiction fandom! How they get our guys from the permafrost to orbit in twenty incredibly difficult stages—and why they bother—is the story of two very "Fallen Angels."