  In the present study, for the first time, an effort sharing approach based on
Inertia and Capability principles is proposed to assess European Union (EU27)
carbon budget distribution among the Member States. This is done within the
context of achieving the Green Deal objective and EU27 carbon neutrality by
2050. An in-depth analysis is carried out about the role of Economic Decoupling
embedded in the Capability principle to evaluate the correlation between the
expected increase of economic production and the level of carbon intensity in
the Member States. As decarbonization is a dynamic process, the study proposes
a simple mathematical model as a policy tool to assess and redistribute Member
States carbon budgets as frequently as necessary to encourage progress or
overcome the difficulties each Member State may face during the decarbonization
pathways.
