Personally if I was to guess I'd put social isolation way above climate as a factor. If you look at the statistics for Sweden for example on a county level you

Personally if I was to guess I'd put social isolation way above climate as a factor. If you look at the statistics for Sweden for example on a county level you quickly see that most suicides are clustered in isolated counties deep in the middle of the country, far from the larger (often coastal) cities, with zero or negative population growth and without much in the way of jobs or industry.