Energy-related CO2 emission accounts and datasets for 40 emergingeconomies in 2010-2019

Since 2000, CO2 emissions from emerging economies have outstripped those of developed economies. To limit global warming to under 1.5 ? by 2100, over 100 emerging economies have proposed net-zero carbon targets. Yet the supportive data are lacking - no inventory of CO2 emission outlines detailed sources by sector or distribution at the subnational level for these economies. Here, we redress the balance by establishing a dataset for an energy-related CO2 emission inventory that covers 47 sectors and eight energy types in 40 emerging economies (, Cui et al., 2021). Their emissions, growing rapidly by 3.0 % yr(-1), reached 7.5 Gt in 2019 and were sourced primarily in coal and oil (34.6 % and 28.1 %, respectively) and consumed by the power and transportation sectors. Meanwhile, among African countries in this group, biomass combustion was responsible for 34.7 %-96.2 % of emissions. Our dataset fills a data gap by providing a detailed, robust emission accounting baseline for emerging economies - an advance that will support emission reduction policymaking at global, national, and subnational levels.