Today is Earth Day, and the theme this year is The Green Generation. In an example of how Texas architects are contributing to this movement, the AIA and its Committee on the Environment (COTE) have announced the 2009 COTE Top Ten Green Projects, which include Shangri La Botanical Gardens and Nature Center (Orange, Tex.) by San Antonio firm Lake|Flato Architects. Winning projects showcase excellence in sustainable design principles and reduced energy consumption. Click here for a complete list of 2009 winners. Pictured above is Shangri La (photo credit: Hester + Hardaway).