My final two weeks in Chaing Mai this April were horrible…one of the worst experiences of my life. This may come as a shock to you from a returning visitor for the past ten years who has never hesitated to put this beautiful historic city at the top of her list as the most desirable city in SE Asia to visit and possibly live year round. I can only blame this change of mind on climate change. This year Chiang Mai broke all their previous records for high pollution indices and even gained the dubious title of being the most polluted city in the world beating New Delhi and Shanghai, the usual winners. The PM2.5 ( fixed particulate matter) was hovering between 140 to 200+ the whole time I was there. I can’t imagine what effect that had on my all ready compromised lungs where some bronchitis had set in while in Bali.