TY - JOUR

T1 - GHG emissions, trade balance, and carbon leakage

T2 - Insights from modeling thirty-one European decarbonization pathways towards 2050

AU - Clora, Francesco

AU - Yu, Wusheng

N1 - Publisher Copyright: © 2022

PY - 2022

Y1 - 2022

N2 - Recognizing the urgent need for concrete sectoral information in designing European climate change mitigation pathways of policy relevance, this study formulates, simulates and compares 31 European decarbonization pathways, focusing on changes in trade flows and GHG emissions. This paper exploits the rich sectoral details from a large bottom-up built system dynamics energy model (the European Calculator model), soft-linking it to a tailor-made computable general equilibrium model (GTAP-EUCalc). Our modeling results suggest that increasing decarbonization ambitions leads to higher reductions of greenhouse gas emissions in Europe (EU27 plus the UK and Switzerland), but with the undesirable outcome of decreasing its external competitiveness through worsened trade balance, if the rest of the world does not reciprocate Europe's decarbonization ambition. A comparison of results across pathways with varying ambition levels between demand and supply measures further reveals their differential roles: when keeping demand-side ambitions constant, elevating efforts on the supply side leads to larger emission reductions and bigger decrease in trade balance; however, holding supply-side ambitions unchanged and increasing demand-side efforts improves the trade balance while achieving larger emission reductions. Furthermore, ambitious demand measures avoid more losses of net exports when coupled with more ambitious supply mitigation measures. These results point to the need for coordinated demand and supply climate change mitigation actions across sectors, and to the benefits of climate-friendly lifestyle choices in not only reducing emissions but also in avoiding undesirable trade outcomes. Our results also demonstrate positive associations between increasing reductions in GHG emissions, worsening external trade balance, and rising carbon leakage rate for Europe. To safeguard the global effectiveness of European decarbonization actions, global cooperation under the Paris Agreement is needed so as to avoid the application of unilateral trade policy such as border carbon adjustments.

AB - Recognizing the urgent need for concrete sectoral information in designing European climate change mitigation pathways of policy relevance, this study formulates, simulates and compares 31 European decarbonization pathways, focusing on changes in trade flows and GHG emissions. This paper exploits the rich sectoral details from a large bottom-up built system dynamics energy model (the European Calculator model), soft-linking it to a tailor-made computable general equilibrium model (GTAP-EUCalc). Our modeling results suggest that increasing decarbonization ambitions leads to higher reductions of greenhouse gas emissions in Europe (EU27 plus the UK and Switzerland), but with the undesirable outcome of decreasing its external competitiveness through worsened trade balance, if the rest of the world does not reciprocate Europe's decarbonization ambition. A comparison of results across pathways with varying ambition levels between demand and supply measures further reveals their differential roles: when keeping demand-side ambitions constant, elevating efforts on the supply side leads to larger emission reductions and bigger decrease in trade balance; however, holding supply-side ambitions unchanged and increasing demand-side efforts improves the trade balance while achieving larger emission reductions. Furthermore, ambitious demand measures avoid more losses of net exports when coupled with more ambitious supply mitigation measures. These results point to the need for coordinated demand and supply climate change mitigation actions across sectors, and to the benefits of climate-friendly lifestyle choices in not only reducing emissions but also in avoiding undesirable trade outcomes. Our results also demonstrate positive associations between increasing reductions in GHG emissions, worsening external trade balance, and rising carbon leakage rate for Europe. To safeguard the global effectiveness of European decarbonization actions, global cooperation under the Paris Agreement is needed so as to avoid the application of unilateral trade policy such as border carbon adjustments.

KW - Climate change mitigation

KW - Computable general equilibrium model

KW - Demand-side climate change mitigation

KW - European Union

KW - International trade

KW - Supply-side climate change mitigation

U2 - 10.1016/j.eneco.2022.106240

DO - 10.1016/j.eneco.2022.106240

M3 - Journal article

AN - SCOPUS:85136146134

VL - 113

JO - Energy Economics

JF - Energy Economics

SN - 0140-9883

M1 - 106240

ER -