Today marks the launch of the "Los Angeles Cleantech Corridor & Green District Competition," an event sponsored by the Southern California Institute of Architecture (SCI-Arc) and The Architect's Newspaper. This call-for-entries seeks submissions focusing on clean technology infrastructure improvements in the Cleantech Corridor, an industrial area just east of Downtown Los Angeles that straddles the Los Angeles River. This cluster-based strategy – spearheaded by Mayor Villaraigosa and the Community Redevelopment Agency – has experienced an impressive wave of attention over the summer, propelling it to the national stage and broadening support for LA's case as the home of clean technologies.