Having lived in a number of climatic conditions...like parts of punjab, bengal, rajasthan, ..and having seen the peculiarities of the people of each region, I have been drawing conclusions which have finally taken a definite form in my mind with my recent visit to another of the regions in maharashra. I am putting the view down finally in words.
In Kottayam, I have often felt that it's particular kind of heat can get to the head. Recently I have been wondering whether heat, head, and high rate of suicides in kerala have any link? Can a type of heat make one feel more suicidal than just the push of circumstances.
The peculiarly unrelenting dry heat of some regions (heat even in evenings) also can effect adversely the intelligence of the people of those regions and so I doubt it can make people dumb (especially the poorer sections which stay outdoors more often or lack a good house.
Whereas some other regions like in Jodhpur, I have felt that the cooler evening air gifts a calming peace on the people of the region, making them quite easy going.
One obvious thing is that people of different regions share similar physical charecteristics, language and even some similarities in terms of their natures. Having stayed in many regions I have experienced that I have been different too in each region. Some of it I accord to my age at each place...but I couldn't strike out the possibility of climatic characters effecting me.
People of some region show vigour and zest for life whereas another region may show a lazy and careless attitude, while others of some regions are very serious and proper about life. In some regions people show lack of depth. They show love and friendliness but it is merely like a surface reflex, whereas their innermost feelings are not fathomable by their surface expressions and behaviour.
One of the biggest blessings in life is staying in different places. It is like opening a new and different window of the mind at each place and becoming open minded, understanding and accepting.
People who have moved around in their formative years are the people who show more rounded personalities. People who have all their life stayed in one place are less accommodating.
Then think of climate change and how it can effect the general civilization! Climate holds more secret powers than we have cared to notice. History, the present and the future have been shaped and is shaped by some known ways and some even unimagined ways by the powerful forces of climate...I am sure.