November 19, 2008 Greenbuild 2008 welcomes Desmond Tutu Play video

(Latoyia Edwards, NECN) - Boston is one of the greenest cities in the United States. This week, the city plays host to the Greenbuild 2008 Conference.

On Wednesday, Archbishop Desmond Tutu addressed the conference.

The Nobel Peace Prize winner used humor to address the subject of protecting the environment. Some in the crowd called the speech inspirational.