A study by the Potsdam Institute for Climate Impact Research (PIK) now sheds light, for the first time, on the carbon intensity of household consumption across much of the world – and thus on the distributional impact of climate policy, which, after all, makes carbon more expensive. The greatest differences are not between rich and poor, but within income groups: key factors include car ownership, place of residence and energy use. The study provides guidance on how to socially balance the fight against global heating. Published in the Journal of Environmental Economics and Management (JEEM), it is supplemented by an interactive online carbon price calculator.