Carmen Bunzl - Universidad Pontificia Comillas

Chapter 4. Case Study: Spain 202
Emissions trading (MtCO2eq.)
140
120
100
80
60
40
20
0
EU 20% without
CDM
EU 20% with CDM EU 30%
Per capita convergence
Multi-criteria
Ability to pay
Triptych
Equal costs
Figure 4 - 18. Emissions trading for 2020 for Spain under the ‘EU 20% unilateral without CDM’, the
‘EU 20% unilateral with CDM’ and the ‘EU 30% in a multilateral regime’scenarios.
3.3.1.3 Abatement costs
The abatement costs also show similar trends for the different regimes under
the three scenarios analyzed. Grandfathering and the Ability to pay approach
produce the most extreme results, with very high costs for Spain – around 1% of
GDP. The Tryptich approach results in the least costs for Spain, together with
the Equal costs approach.
The abatement costs when using the CDM are much lower, as reduction
efforts can be made where they are most cost-effective. Overall abatement costs
are approximately four times as high in the 30% reduction scenario than in the
20% reduction scenario with CDM.
Escuela Técnica Superior de Ingeniería ICAI Carmen Bunzl Boulet Junio 2008