I would like to construct a language for a fictional world. From what I gathered in different places, the first element to consider are the phoneme used by the speakers.
However, since I already have a built world, I know the climate and geography conditions of the country where that language should be.
I am not a linguist, but I think that, in general, languages travel with the people, and evolve depending on the situation (e.g. contacts with other languages). However, I was wondering whether the phonemes used by the languages depends on the natural environment where those languages appeared/are used/etc.
Do people in colder countries tend to speak with more guttural languages? Or are there some similarities for languages in similar climate/geography conditions that are not explained by historical or political connections?
As I am more often there, I asked the same question on Worldbuilding, until I realised that there were a dedicated site for language related questions.