Try reading www.creationscience.com if you truly want scientific explanations for how a worldwide flood was possible. Dr. Walt Brown PhD has some simply amazing conjectures on how all of this came to be. Incidentally, although a christian he started out believing in a billions of years evolutionary model before most of the pieces of the puzzle began to fall into place.
Center for Scientific Creation - In the Beginning: Compelling Evidence for Creation and the Flood
http://www.creationscience.com/onlinebook/IntheBeginningTOC.html
Also I have a few other links if you'll click on my profile - but sadly you'll probably will want to disregard all of this evidence too...
I went to the link you posted. There I read the section titled How Accurate Is Radiocarbon Dating? because that is a field I actually know something about.
The article is loaded with the standard creationist nonsense.
Why should I believe any of the rest of Dr. Brown's writing if the one article I can actually judge the accuracy of is so full of errors?
Is he hoping people won't know the difference?
Sorry, another example of creation "science" failing to include real science.