How Consistent are Alternative Short-Term Climate Policies with Long-Term Goals?

42 Pages Posted: 14 Jan 2005

See all articles by Valentina Bosetti

Valentina Bosetti

Bocconi University; CMCC - Euro Mediterranean Centre for Climate Change

Marzio Galeotti

University of Milan - Department of Environmental Science and Policy (DESP); Bocconi University - IEFE Centre for Research on Energy and Environmental Economics and Policy

Alessandro Lanza

Fondazione Eni Enrico Mattei (FEEM), Milan; CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici; Bocconi University - IEFE Centre for Research on Energy and Environmental Economics and Policy

Date Written: December 2004

Abstract

Choosing long-term goals is a key issue in the climate policy agenda. Targets should be easily measurable and feasible, but also effective in damage control. Once goals are set globally, given the uncertainty affecting long-term strategies and region-specific preferences for different policy instruments, policies will be better represented by a diversified portfolio to be revised over time, rather than once and forever decisions. It therefore becomes crucial to understand to what extent different strategies (or policy portfolios) are consistent with long-term targets, that is, when they imply emission paths which do not irreversibly diverge from globally set goals. The present paper aims to investigate emission paths implied by plausible policy scenarios against those derived by imposing alternative long-term targets, comparing, for example, differences in peak periods. Plausible policy scenarios are for instance Kyoto-type targets with or without participation by the U.S. and/or by developing countries. Different long-term targets considered focus on stabilisation of CO2 concentrations, radiative forcing and the increase in atmospheric temperature relative to pre-industrial levels. In order to account for the uncertainty surrounding the climate cycle, for each long-term goal multiple paths of emission - the most probable, the optimistic and the pessimistic ones - are considered in the comparison exercise. Comparative analysis is performed using a newly developed version of the FEEM-RICE model, a regional economy-climate model of optimal economic growth which is based on Nordhaus and Boyer's RICE model crucially extended in order to account for induced technical change. In particular, both carbon and energy intensity are affected by a new endogenous variable - Technical Progress - which captures both the role of Learning by Researching and of Learning by Doing. These are in turn determined by the optimal levels of Research and Development and of Emission Abatement.

Keywords: Climate policy, Long-term climate targets, Climate sensitivity uncertainty, capping radiative forcing

JEL Classification: H0, H2, H3

Suggested Citation

Bosetti, Valentina and Galeotti, Marzio and Lanza, Alessandro, How Consistent are Alternative Short-Term Climate Policies with Long-Term Goals? (December 2004). FEEM Working Paper No. 157.04. Available at SSRN: https://ssrn.com/abstract=643702 or http://dx.doi.org/10.2139/ssrn.643702

Valentina Bosetti (Contact Author)

Bocconi University

Via Gobbi 5
Milan, 20136
Italy

CMCC - Euro Mediterranean Centre for Climate Change

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Marzio Galeotti

University of Milan - Department of Environmental Science and Policy (DESP) ( email )

2 via Celoria
I-20133 Milano
Italy
+39-2-50316470 (Phone)
+39-2-50316486 (Fax)

HOME PAGE: http://www.unimi.it/chiedove/cv/ENG/marzio_galeotti.pdf?1531977155891

Bocconi University - IEFE Centre for Research on Energy and Environmental Economics and Policy ( email )

via Rontgen
Milan, 20123
Italy
+39-2-58362340 (Phone)

HOME PAGE: http://www.iefe.unibocconi.it

Alessandro Lanza

Fondazione Eni Enrico Mattei (FEEM), Milan

Corso Magenta 63
20123 Milan
Italy

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici ( email )

via Augusto Imperatore, 16
Bologna, I-73100
Italy

Bocconi University - IEFE Centre for Research on Energy and Environmental Economics and Policy ( email )

viale Filippetti, 9
Milan, 20122
Italy

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