That is a really good question. Another angle to this question is to also ask: are their / will their be any "winners" from a changing climate (that is, does a once unproductive area or region become fertile for agricultural or other purposes?). To your question: climate change is a global phenomena so in many respects the environmental impacts are ubiquitous - it does not discriminate with borders etc. This said, some nations are more wealthy, live in more stable geopolitical regions, and are not as climatically vulnerable. Globally, I cannot think of too many 'regions' as being unaffected. However, there are some countries that are better positioned (in the short term) to adapt (example I might include are: New Zealand, possibly southern areas of South America, smaller wealthy countries (Brunei) ... but these are selective and have their own challenges).