Why are many people in UK wearing a red and green badge on their clothes?

For a few days, while watching BBC World News, I’ve been noticing that many people (I don’t live in UK) are wearing a red and green badge on their clothes. I noticed, while watching Man Utd – Hull City highlights, that even Sir Alex Ferguson was wearing one.

I’m a curious sort of person and I’m still wondering what in fact is this badge. Could someone tell please?

Why are many people in UK wearing a red and green badge on their clothes? Read More ยป