OK, let's talk about the possibility of a worldwide flood. For your perusal, mjiracek, I've examined the models that young-earth literalist websites propose:
From
AIG:
"In their peer-reviewed article 'Flood models: the need for an integrated approach', Andy McIntosh, Tom Edmonson and Steven Taylor concluded that 'only as there is greater interaction between the relevant scientific disciplines will some of the unanswered problems of the biblical Flood models be solved'... In principle, we agree that there should be interaction between the relevant scientific disciplines in discussing how Genesis relates to the geological record... " Interaction between the relevant scientific disciplines... is this author referring to the scientific disciplines of floodology and theology? He couldn't possibly mean geology, paleontology, anthropology, physics, and other such disciplines, because these do not have unanswered problems concerning the biblical Flood models. They thoroughly falsify a global flood, for reasons I have stated before, and reasons I will get into.
This article does not even discuss a flood model. It conludes with,
"None of us is satisfied with the model that we proposed in 1996. In the light of the problems encountered, our thinking has moved on, albeit not in a direction that McIntosh et al. would approve of. On the other hand, we remain convinced that Genesis preserves a trustworthy historical record of a global Flood." In other words, Answers in Genesis as an organization has no answers for a global flood model, because as of late 2000? (according to the citations in this article) they haven't developed a flood model that even they accept. But, just for fun, let's examine the various unaccepted models proposed in their cited article,
Flood models: the need for an integrated approach:
The vapor canopy model:
"The vapour canopy model of the Flood is the one that has held greatest sway in scientific creationism since serious research began in the 1960s. The book The Genesis Flood by Whitcomb and Morris,1 first published in 1961, and Whitcomb's later The World that Perished (1996) explain this view.2 The vapour canopy theory is that the Earth's atmosphere was surrounded by a water vapour blanket that collapsed at the onset of the Flood. Dillow has extensively explored this concept theoretically.3 This model has led the field for a number of years, but has difficulties in accounting for the large amount of catastrophic upheaval in the Earth at the beginning and through the Flood year."
Other than the doubts concerning this theory that the authors of this article hold themselves, this model has been shown to be physically impossible.
The graphic from the site partially explains why.
I do not know how valid these calculations are, but according to Answers in Genesis, the mere addition of a mysteriously-suspended 50 cm of water to the upper atmosphere would result in extreme increases of temperature at the surface of the earth. Since much more water needs to be accounted for in order to flood the higher mountains of the world, the effect of surface temperature would only be more profound, resulting in heat that would eliminate all life. The transfer of energy from vapor canopy to falling water would have also superheated the atmosphere. Furthermore, the pressure experienced on earth is due to the force of all the air molecules in the atmosphere pushing downwards. The addition of a significant amount of water to the upper atmosphere would compress the air, resulting in toxic concentrations of oxygen.
Furthermore, if this water were to be released over a short period of time, all the organisms already killed by toxic oxygen concentrations may experience dissolved gases boiling out of the blood, internal rupture, and hemmorhage, resulting in a very unhappy situation for anything that somehow had managed to survive. Being on a boat will not save anyone from incredible temperatures and vast changes in pressure.
Conclusion: The vapor canopy model holds no water.
The hydroplate model:
"The hydroplate theory has the advantage of explaining great devastation in the first 40 days." Indeed. In fact, it explains devastation that is so great, not even a well-built wooden ark would have survived.
Assuming that the earth's tectonic plates can somehow float on water, which they can't, and assuming that this water burst out suddenly, consider the implications that this would have on the surface of the earth. The more massive earthquakes of today (e.g., Turkey) are caused by relatively small peturbations in the crust compared to the sudden rearranging of every tectonic plate. Even if Noah had managed to sail his ark out to the middle of an ocean before all this began, the resulting shockwaves would have created tsunamis large enough many times over to smash his ark to pieces.
Furthermore, a calculation of the energy that would be released by enough water to flood the globe trapped near the superheated mantle would show that the atmosphere would heat up into the range of hundreds of degrees C, killing everyone instantly, boat or no boat.
Conclusion: Hydroplate model is not feasible.
Catastrophic plate tectonics and runaway subduction:
This article, in addition to expounding on the other models proposed, does a better job in explaining the problems with this theory than I could:
"Runaway subduction: John Baumgardner created the runaway subduction model, which proposes that the pre-Flood lithosphere (ocean floor), being denser than the underlying mantle, began sinking. The heat released in the process decreased the viscosity of the mantle, so the process accelerated catastrophically. All the original lithosphere became subducted; the rising magma which replaced it raised the ocean floor, causing sea levels to rise and boiling off enough of the ocean to cause 150 days of rain. When it cooled, the ocean floor lowered again, and the Flood waters receded. Sedimentary mountains such as the Sierras and Andes rose after the Flood by isostatic rebound. [Baumgardner, 1990a; Austin et al., 1994]
* The main difficulty of this theory is that it admittedly doesn't work without miracles. [Baumgardner, 1990a, 1990b] The thermal diffusivity of the earth, for example, would have to increase 10,000 fold to get the subduction rates proposed [Matsumura, 1997], and miracles are also necessary to cool the new ocean floor and to raise sedimentary mountains in months rather than in the millions of years it would ordinarily take.
* Baumgardner estimates a release of 10^28 joules from the subduction process. This is more than enough to boil off all the oceans. In addition, Baumgardner postulates that the mantle was much hotter before the Flood (giving it greater viscosity); that heat would have to go somewhere, too.
* Cenozoic sediments are post-Flood according to this model. Yet fossils from Cenozoic sediments alone show a 65-million-year record of evolution, including a great deal of the diversification of mammals and angiosperms. [Carroll, 1997, chpts. 5, 6, & 13]
* Subduction on the scale Baumgardner proposes would have produced very much more vulcanism around plate boundaries than we see. [Matsumura, 1997]"