What does go green mean

We hear "go green" alot, but do we really know what it means?
I've never really stoped to think about what it meant until I started watching
seminars online about it. My first thought after watching it was OMG ARE YOU SERIOUS? I would have never thought that the things we buy at the store can be so harmful for us. The next thing that came to mind was me and my husband have been trying to get preg for 3 years now and some of the things ihave learned from looking up on the net and watching these lil seminars about it was was this infertilty caused by me b/c of using all these chemicals out there I know one thing I'm def. going green!!