I'm currently working in a foreign country and have already lived abroad in more than one country for some years. Now, however, I realize that there are many differences between where I'm from (in North America) and where I am now which I feel I simply cannot reconcile. For this reason, I feel that it may be time for me to head back. I still want to continue doing work in my field, however, and therefore I would ideally be applying to do more or less exactly the same job there as I am here. Since "culture"† would then be the only difference, how can I explain in a positive way that one major reason for me switching jobs is the "culture"?
†By "culture", I explicitly do not mean company culture... albeit that the culture of the surrounding city/area/country/etc. obviously has an effect on that as well.