Growing poverty, collapsing health care systems, the AIDS pandemic and the widening of health and health care inequities within and between countries all point to the limited success of global public health interventions over the past few decades. Notwithstanding the efforts of multilateral agencies such as the World Health Organization and the many existing contributions from the Canadian community of health professionals, this commentary argues and appeals for further action particularly in relation to the social and political impediments to better health and justice. Specifically, it calls for the development of a robust instrument to assess the impact of Canada as a whole on the state of global health, and to monitor the performance of key Canadian institutions. It is suggested that such an instrument would result in a process that enhances global citizenship and public accountability, and buttresses the efforts of civil society to forge trans-national links in pursuit of a fairer and healthier world. Public health professionals, by virtue of their social standing as well as the nature and tools of their discipline, should be at the forefront of such civic efforts.