limate change and economic inequalities are among the most pressing challenges of our times, and they are interrelated: failure to contain climate change is likely to exacerbate inequalities within and between countries 1-4 and economic inequalities within countries tend to slow the implementation of climate policies 5,6 . To properly understand the relationship between economic inequality and climate change, sound and timely data about the distribution of greenhouse gases (GHG) emissions between individuals and across the globe are needed. Such information is currently missing. As a matter of fact, researchers, policymakers and civil society struggle to establish even basic facts about which groups of the population contribute to emissions growth, or mitigation. This jeopardizes any efforts towards sustainable lifestyles.This paper addresses these issues by harnessing recent conceptual and empirical progress in the measurement of income, wealth and GHG emissions. Compared with previous work on global carbon inequality 7-10 , this paper presents three major developments in terms of data, methods and scope.First, the paper uses novel income and wealth inequality data from the World Inequality Database 11 to track inequality from the bottom to the top of the distribution. These economic inequality data are combined with GHG footprints from input-output models thanks to a newly assembled set of country-level information on the link between individual emissions, consumption and income in more than 100 countries. The methodology therefore makes it possible to track individual GHG emission levels with more precision than previous longitudinal carbon inequality estimates 9 . Second, the method developed allows explicitly distinguishing between emissions from private consumption and investments, making it possible to better understand the drivers of emissions among wealthy groups. Third, the paper focuses on the distribution of emissions over the 1990-2019 period, that is, from the first Intergovernmental Panel on Climate Change (IPCC) report to the eve of the Covid-19 pandemic. The three decades saw critical shifts in the distribution of world economic growth 12 , which have not been systematically studied from the point of view of GHG emissions inequality.There are two broad approaches to the measurement of global carbon inequality. 'Bottom-up' approaches use household-level microdata to produce macroestimates. This is the approach taken by