Achievability of the Paris Agreement targets in the EU: Demand-side reduction potentials in a carbon budget perspective

Limiting global warming to 'well below' 2°C above pre-industrial levels and pursuingefforts to limit the temperature increase even further to 1.5°C is an integral part of the 2015 Paris Agreement. To achieve these aims, cumulative global carbon emissions after 2016 should not exceed 940 - 390 Gt of CO2 (for the 2°C target) and 167- 48 Gt of CO2 (for the 1.5°C target) by the end of the century. This paper analyses the EU's cumulative carbon emissions in different models and scenarios (global models, EU-focused models and national carbon mitigation scenarios). Due to the higher reductions in energy use and carbon intensity of the end-use sectors in the national scenarios, we identify an additional mitigation potential of 26-37 Gt cumulative CO2 emissions up to 2050 compared to what is currently included in global or EU scenarios. These additional reductions could help to both reduce the need for carbon dioxide removals and bring cumulative emissions in global and EU scenarios in line with a fairness-based domestic EU budget for a 2°C target, while still remaining way above the budget for 1.5°C.