Resilient Cities 2011, the second world congress on cities and adaptation to climate change in June 2011, Bonn, Germany, brought again a broad diversity of actors together. Cities, local governments, public institutions, researchers, NGOs, business and many others took stock and continued their dialogues on sustainable and resilient urban development. The debate on the meaning of and interaction between climate adaptation, risk reduction, and broader resilience has intensified. This briefing sheet provides a quick overview on the congress proceedings.