David Messer is the Director of the Climate Smart Buildings Alliance, a joint initiative of EllisDon, RBC and Mattamy Homes aimed at leading and accelerating the transition to a net zero buildings sector. Through CSBA (pronounced Caz-Bah) David is leading projects aimed at increasing and removing barriers for the use of lower carbon building materials, as well as projects to increase building standards and the pace of building retrofits. David was previously the Executive Director of the Guelph-Wellington Smart Cities Office where he led two initiatives aimed at accelerating the circular economy, Our Food Future, an Infrastructure Canada funded smart cities project, and COIL (Circular Opportunity Innovation Launchpad), a circular business accelerator that worked with over 160 organizations to scale circular solutions in the food, environment and construction/demolition sectors. David has a long history of working on technology, digital government, policy and systems change as part of the Governments of Ontario and Alberta, within industry associations and as Vice President - Public Affairs with Edelman.