In April 2009, more than 170 mayors, county commissions, environmentalists, business leaders and Maryland state officials came together in Annapolis for "Winning Support for Addressing Climate Change". An interactive summit about community-level responses to climate risks such as sea-level rise and storm surge that threaten the state’s coast, its centerpiece was an innovative negotiation role-play, facilitated by CBI, that demonstrated the key challenges and policy options coastal communities face.