[blam]

"Remember the book by John Christopher in which people came up from way under the ice that covered New York City to eventually head down toward Rio?"

Sorry, I'm not familiar with him.

[aruanan]

I think The Long Winter (written in 1962) was the one I was talking about. So they were thinking of a new ice age back in the early 60s. His books are pretty fun. I like the Tripod series in which Earth has been taken over by these creatures that travel around in walking tripods and control people via a metallic mesh cap that is fitted on capping day when a child reaches, I think, 13. These books are about the fight against the aliens.