what is a vapour canopy and what is the evidence for it?
The Vapor Canopy theory is seldom used in creationist circles these days. In fact, I think AiG posted an official retraction of their support based on mathematical models that explain how ambient temperatures inside such a canopy would have boiled all of life.
Where the VC theory came from was from Genesis, where it talks about the firmament as the "water above the waters." They took this to mean that it might be possible that it used to never rain in the antediluvian world because the vapor canopy, which is supposedly much like the ozone layer, trapped all moisture earth's atmosphere.
Accordingly, God caused the canopy to rupture, along with the fountains of the deep, where it subsequently flooded the earth.
Edited by Nemesis Juggernaut, : No reason given.
"It is better to shun the bait, than struggle in the snare." -Ravi Zacharias