The second full day of the 2011 Greenbuild conference brought a steady flow of news, with Marriott Hotels earning LEED volume certification for three of its brands, a challenge to the USGBC's 2012 update to LEED, and other news.

The second full day of the 2011 Greenbuild conference brought a steady flow of news, with Marriott Hotels earning LEED volume certification for three of its brands, a challenge to the USGBC's 2012 update to LEED, and other news.
