go green
turn green

Whether or not that light would ever have gone green without them is impossible to say.

Other women took one look at them, and went green with envy.

And suddenly everything went green, like right before a tornado.

It is a world worth going green for, I thought, even if it's not easy.

Have all the world's smallest countries decided to go green in the past month?

Despite the lack of consensus, parents can still go green.

The security light on the door had just gone green.

There's a new movement under way to go green - starting from the first days of life.

About a minute later it went green and allowed them to move forward a bit before they were forced to stop again.

Today, I want to talk about going green for the holidays.