Mayor Naming Sustainability OfficerMayor Bill de Blasio is poised to take another step toward achieving his lofty goal of making the nation’s largest city its greenest one.CopyFacebookXTruthGettrLinkedInTelegramEmailSaveNew York Mayor Bill de Blasio addresses the Climate Change Summit, at United Nations headquarters on Tuesday, Sept. 23, 2014. De Blasio on Wednesday will create a new agency, the Office of Sustainability, and name Clinton White House veteran Nilda Mesa its first director, administration officials told The Associated Press. AP Photo/Richard DrewBy Jonathan Lemire12/3/2014Updated: 12/3/2014Print