International mobility in carbon dioxide emissions

► The evolution of international mobility in per capita CO2 emissions for the period 1971-2007 is analysed. ► Several different synthetic mobility measures are used for capturing the various perceptions of mobility. ► The mobility is high and, in a significant way, without impact on distribution. ► There does not seem to be a clear, convincing relationship between mobility and the evolution of inequality. ► The results obtained have some implications in terms of analysis and environmental policy.