Sustainability is one of the top issues identified in a recent National League of Cities survey, and the topic will be woven into upcoming conferences accordingly.

Building on the 2009 NLC Green Cities Conference and Exposition, which attracted more than 750 participants, organization leaders are pledging to make sustainability a critical component of the upcoming Congress of Cities, to be held Nov. 10-14 in San Antonio, Texas, and the 2010 Congressional City Conference in Washington, D.C., next March.

Questions about the NLC’s green cities ideas, programs and projects can be directed to Ken Rosenfeld, the program director at Center for Research and Innovation. Ken can be reached at rosenfeld@nlc.org and 202-626-3194.