Back in August of 2008, I did a post on the debatable issues with the water vapory canopy. Though some young earth creationism have used the water vapor canopy to explain the waters lifted above the earth on day 2 of the creation week (Genesis 1:6-7) and how it was possible to rain for forty days and forty nights with Noah’s flood, they have used it only as a model and not as explicit biblical teaching. However, there are good reasons why this model is not viable. Some of these reasons are explained by Bodie Hodge with Answers in Genesis in his recent response to a letter. You can read this response here.