I'm sure you know that geology and meteorology go hand in hand, as weather plays a huge factor in shaping the earth.
If we had seen it he would definitely have had plenty to complain about The Core as well as any Hollywood movie covering his field. The thing is that around the time that The Day After Tomorrow came out, there was a lot of doomsday talk about the world entering a new ice age and megastorms destroying the world, complete with a few Hollywood movies covering the subject, so the scientific aspects of TDAT were ripe for nit-picking.
Btw, TDAT and The Core are numbers 5 and 6 in Yahoo!'s list of the 10 most scientifically inaccurate movies ever: http://movies.yahoo.com/photos/top-1...slideshow-903/