The meeting of the Climate and Clean Air Coalition (CCAC) Municipal Solid Waste Initiative, from 10 to 11 October 2013 in Vienna, brought together participating cities and initiative partners to strengthen international action to reduce emissions of short-lived climate pollutants (SLCPs) from municipal solid waste. The CCAC Initiative fosters peer-to-peer knowledge exchanges, provides training opportunities, and continues to build a supportive global network of cities taking action on SLCPs. The major objective for this meeting was developing plans for direct and on-the-ground action that the CCAC and new participating cities can carry out jointly through 2014.