The history goes back to year 2005, where the Japanese government starts to promote this campaign, call CoolBiz.
The idea is to get the white collar workers to stop wearing tie & jacket to work on summer.
Because in Japan, most japanese wear tie & jacket to work, even during the hottest day in a year. That is a symbolic of respect.
However, this practice had made office buildings consumes more energy, as a lower temperature setting is required.
It is until recently, the campaign become popular. As more and more people are concern about environment, and the effect of high energy consumption, a day without a tie is more more acceptable in Japan.
I personally do not wear tie to work. This could be odd, especially when people starts to feel as if we do not respect them.
But, from my experience, when I tell them the reason I don't wear a tie, they normally accept my explanation. Furthermore, a deep impression were given.
So, guys, do your part for the earth this summer.
Have a Green day ahead.