This book gave insights and defended the canopy in a way you won't find on the Internet. Granted, there are many complex equations, but the rest of the book .The waters above the firmament, mentioned in the book of Genesis, are believed by many Christian Theologians to have been a vapour canopy that once covered planet Earth.

The cause of the great flood, also described in Genesis, is ascribed to the removal of this vapour canopy. Dillow spends a lot of time describing scientific theory on the plausibility of the canopy, which will tax the patience of the average reader. Dillow also devotes a good portion of the book to the near-perfectly preserved mammoths in Siberia, claiming that the flood is the catastrophe that caused this. The author displays some religious fanaticism in his analysis of data and could have utilized more from comparative mythology to support his arguments.