UPDATE – We’ve warned about this before, now BBC News reports that London is definitely sinking. Or maybe the problem is that the Thames is rising. In fact, scientists don’t understand why MORE major cities aren’t sinking.

In BBC News, Jonathan Amos writes that in order to save London, “tidal defenses including embankments, walls, gates and barriers will, at some stage, have to be adapted or moved, or new types of defenses created?” Since most major cities were built in coastal areas, in order to take advantage of shipping, this is something that the major metropolitan areas in many different countries will have to face eventually?or maybe SOON. In fact, according to geologists, many of these areas should ALREADY be underwater. Here’s why they’re not.read more