Beyond the nation-state narrative: an empirical inquiry into the cross-country and cross-income-group carbon consumption patterns

The concern for inequality, growth and development is undoubtedly crucial in the context of climate change mitigation and adaptation. However, most studies either rely on the nation-state estimates of carbon emissions to propose a uniform nation-wide growth (or degrowth) strategy, or they tailor the method to assess the inequality of one country at a time, making a cross-country cross-income comparison difficult. To fill this analytical gap, we synthesize the existing methods of emission calculations and calculate the level of carbon emissions associated with given income deciles of household consumption in five countries, namely China, Germany, India, the UK and USA. We find that the within-country inequality varies among countries, with the ratio between the top and bottom income deciles ranging from three to nine at the household level. We also find that the carbon emissions of the top income group in urban China is almost comparable to that of their peer group in the US, UK and Germany. Based on these results, we discuss the use of the remaining global carbon budget in the context of development and inequality.