How clever are we?

Times Online published an article about the distribution of IQ points across Europe. Amongst the first couple of countries are Germany, the Netherlands, Poland or Sweden. According to Professor Richard Lynn of the University of Ulster, there is a relation between cold countries where people seem to have larger brains than in warmer terretories. Also is there a big difference between rural and urban places. Furthermore, the diet plays an important role. E.g. meat contains more proteins which are important for the development of the thinking organ. Ah, yes, and also if the country was at war at some stage, plays a role - except in the case of Germany.

So the whole thing doesn't say anything at all after all, or does it?