Please! I've explained a lot. I am not worried whether you or other skeptics accept it or not.
There are many details not provided in the Genesis account so I won't comment on what isn't there, but enough evidence exists to give it credibility.
In addition to the evidences I've posted, I want to say.....
I'm an Old-Earther. Yet I see the Genesis Flood as Global. I mean, Noah and family are in the Ark, 370 days! If it were local, the waters would have drained off much sooner, and Noah and family wouldn't have needed to stay in the Ark over a year!
There's no reason that I can see, in light of another Biblical passage at Psalms 104 which describes Earth's pre-Flood topography as smoother, where evidence would fail to explain a Global Flood. In fact, it supports it....
I know the rocks are old, but I see many youthful (geologically speaking) mountain ranges. They have well-defined, crisp features, as if they were recently formed as those "valleys sank down (Psalms 104)," due to the "springs of the deep" being broken, i.e., thrust upward. If the Himilayas or Alps were millions of years old... with the extreme amount of erosion they endure, they'd be rounded stumps by now! After the Flood, tectonic forces took over.
Again...old earth, but young features. That's how I see it.
It also explains the permafrost, and the extinction of megafaunal grazers in those high latitudes, like mammoths etc. *Drastic* climate changes!
With the "waters above" prior to the Deluge, from which came *some* of the Flood waters, the climate around the Earth would be temperate even in northern latitudes, and provided enough vegetation which in turn allowed for these grazers to thrive, as is discovered.
But once these waters fell, temperatures plunged, and coupled with the "waters below", nothing would ever be the same!
We also find discrepencies in 14C readings, in organic material over 5,000 years, huge jumps in dating....what could account for it? One explanation is the Earth's atmosphere was like a greenhouse, i.e., had less cosmic rays affecting it. That would definitely effect changes in carbon decay rates.
So while you and others, when explaining these anomalies, simply say, "we don't know"... there are those of us who do.