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Carmen Bunzl - Universidad Pontificia Comillas

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Chapter 2. Options for future climate change architectures 92<br />

3.1 Criterion-based assessment<br />

This section reviews international climate change agreements using the same<br />

criteria as in Section 2.1.4 (IPCC, 2007): environmental effectiveness, cost-<br />

effectiveness, distributional considerations and institutional feasibility. As the<br />

different approaches have been assessed throughout their description, they will<br />

not be thoroughly discussed in this section. The discussion is summarized in<br />

the table below.<br />

Table 2 - 8. Criterion based assessment of international climate change agreements<br />

Approach<br />

National emission<br />

targets and<br />

international<br />

emission trading<br />

Sectoral<br />

agreements<br />

Environmental<br />

effectiveness<br />

Depends on<br />

participation and<br />

compliance. If<br />

objectives are not<br />

strong enough, the<br />

carbon price will<br />

not be able to<br />

achieve the<br />

necessary changes<br />

in technology or to<br />

dissuade<br />

consumers.<br />

Not all sectors are<br />

compatible with<br />

this approach;<br />

global efficiency<br />

decreases with a<br />

reduced number of<br />

sectors.<br />

Cost-effectiveness<br />

Emission trading is<br />

seen as the most<br />

cost-effective<br />

system, but this<br />

decreases with<br />

limited<br />

participation and<br />

low gas and sector<br />

coverage.<br />

Lack of trading<br />

across sectors<br />

increases overall<br />

costs. May be cost-<br />

effective within a<br />

sector.<br />

Distributional<br />

considerations<br />

Depends on initial<br />

allocation.<br />

Takes into account<br />

national<br />

circumstances.<br />

Reduces<br />

competitiveness<br />

concerns within a<br />

sector. Depends on<br />

participation.<br />

Institutional<br />

feasibility<br />

Depends on<br />

capacity to prepare<br />

inventories and<br />

compliance.<br />

Many separate<br />

decisions and<br />

technical capacity.<br />

Each sector may<br />

require cross-<br />

country institutions<br />

to manage<br />

agreements.<br />

Escuela Técnica Superior de Ingeniería ICAI <strong>Carmen</strong> <strong>Bunzl</strong> Boulet Junio 2008

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