The modern world has been haunted by a growing list of global risks, ranging from pandemics to pollution and climate change. A key question facing researchers in this area is: How are such global risks communicated and managed across borders? Based on how China has responded to the outbreak of SARS in 2003 and to the PM2.5 air quality crisis in 2010, this study attempts to develop a model of communication synchronization to explain how the global culture of transparency was articulated as an integral part of a national system.