This year, the U.S. Green Building Council is mixing things up with their annual green building conference and expo. Greenbuild 2011 will be held in October instead of November. The conference is also stepping outside of the United States and will be hosted by the city of Toronto. In preparation for Greenbuild 2011, which runs from October 4-7, the U.S. Green Building Council has released a preview video.

Photo: mityzus/Flickr

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