Join us in Philadelphia, Pennsylvania from Nov. 20-22 for USGBC's 2013 Greenbuild International Conference and Expo.

Register today!

Greenbuild is the world's largest conference and expo dedicated to green building. Thousands of building professionals from all over the world come together at Greenbuild for three days of outstanding education sessions, renowned speakers, a vast expo floor, green building tours, special seminars and networking events.

We are Greenbuild Nation.

P.S. I’d love to know how you are participating in Greenbuild Nation. Tweet @Greenbuild, use the phrase "We are #GreenbuildNation" and be entered to win a free conference registration to Greenbuild 2013 ($1000 value).

In your tweet, be sure to include a link to something green building-related that you have contributed to. It can be an photo of a LEED-certified building, a newspaper article, home video, TED talk, blog post, Instagram shot of a LEED credential you've earned… anything that represents how you are playing an active role in Greenbuild Nation. The contest will run now through Sept. 3, when we will randomly draw a winner.

To view the latest tweets and read contest rules and regulations, visit our #GreenbuildNation dashboard. Happy tweeting, Greenbuild Nation!

Register for Greenbuild today