New York City Councilmembers Bill de Blasio and David Yassky today endorsed the Gowanus Summit principles for responsible development of the Gowanus Canal area. The Gowanus Summit is a diverse coalition of community organizations, labor unions, and advocates for blue-collar jobs. The principles include guarantees for affordable housing, to preserve space for artists, artisans and light manufacturing, to create good jobs, to require responsible contractors, and to maintain high environmental standards.