CO2 emissions are a major contributor to global warming and account for around 80% of all EU greenhouse gas emissions. They are influenced by factors such as climate conditions, economic growth, size of the population, transport, and industrial activities.
The European Commission noted that the import and export of energy products have an impact on CO2 emissions in the location where fossil fuels are burned. If coal is imported this leads to an increase in emissions. If electricity is imported, it has no direct effect on emissions in the importing country as these would be reported in the exporting country where it is produced.
Full article available: https://www.neweurope.eu/article/co2-emissions-in-the-eu-down-in-2018/