I admit I didnt read your link. Dont know how old you are but im 43. I remember when in my early teens going deer hunting in November and freezing out by 9 am several yrs in a row. I been hunting for the last few yrs wearing a light jacket and staying all day. Could that be a sign of global warming? Gonna have to ask my granddad how it was back in 1935 or thereabouts, he is 94.