Fatty Tree

As I have already said, I see this tree 4 times a business day: 1) walking to work in the morning; 2) going back home for lunch; 3) back to the office after lunch; 4) back home in the end of the day.
As winter is coming, sky is getting clear and humidity is dropping: in the afternoon, it was today around 30%. Late on winter, it will be 10%, like a desert...