I am a student learning both English and Russian, and I find the Russian pronunciation to be very different from the English one. A few months ago I made a detailed post on the Linguistics SE to explain my view that the mechanics of English speech is principally different from the mechanics of Russian speech. In short, my view is this: English speech is rather a continuous flow like meowing of a cat, a continuous flow of vowels whereon consonants are "superimposed," whilst Russian speech is rather built on consonants, which are connected with each other by short vowels, and is like a relaxed walk. To understand English speech, you have to recognize flow patterns, whilst Russian speech is more about individual consonant sounds and their sequences.
I recently caught myself pondering about what factors made the Russian pronunciation and English pronunciation so different, and it came to my mind that frost could be a factor. Russian winter is very cold, with the lowest temperature recorded in Moscow being -42 C. Google says that right now, when I am typing these lines, the temperature in Moscow is -9 C, which is still pretty cold. Under such conditions, your lips get somewhat limp and you also do not want to breathe the cold air too actively. I guess these factors may have affected the development of the Russian pronunciation and resulted, in particular, in the focus being on consonants. Furthermore, Russians tend to pronounce consonants without effort, with the mouth and lips being very relaxed, and this seems to be the natural way to speak when your lips are somewhat frozen.
An interesting related observation is that the Mongolian language is similar to Russian in that the focus is on consonants, and Mongolian winter is notoriously cold as well, with the current temperature in Ulaanbaatar being -13 C, even lower than in Moscow.
Also, comparing northern and southern European languages, I observe that whilst the northern languages sound somewhat rough, the southern languages are more vocal, so the climate might indeed have an effect on the phonetic development of a language.
My question: Have there been any serious linguistic theories put forward that link the Russian way of pronunciation with Russian frost? What do experts think about the possible effect of the Russian cold climate on the Russian way of pronunciation?