2C or Not 2C?

39 Pages Posted: 21 Jan 2012  

Celine Guivarch

CIRED, International Research Center on Environment & Development, France; Ecole Nationale des Ponts et Chaussées (ENPC); Université Paris Est

S. Hallegatte

World Bank

Date Written: January 19, 2012

Abstract

Political attention has increasingly focused on limiting warming to 2°C. However, to date the only mitigation commitments accompanying this target are the so-called Copenhagen pledges, and these pledges appear to be inconsistent with the 2°C objective. Diverging opinions on whether this inconsistency can or should be resolved have been expressed. This paper clarifies the alternative assumptions underlying these diverging view points and explicits their implications. It first gives simple visualizations of the challenge posed by the 2°C target. It then proposes a “decision tree”, linking different beliefs on climate change, the achievability of different policies, and current international policy dynamics to various options to move forward on climate change.

Keywords: Feasibility of 2°C Target, Climate Change Negotiations

JEL Classification: Q5, Q58

Suggested Citation

Guivarch, Celine and Hallegatte, S., 2C or Not 2C? (January 19, 2012). FEEM Working Paper No. 87.2011. Available at SSRN: https://ssrn.com/abstract=1988201 or http://dx.doi.org/10.2139/ssrn.1988201

Céline Guivarch (Contact Author)

CIRED, International Research Center on Environment & Development, France ( email )

Campus du Jardin Tropical
45 bis avenue de la Belle Gabrielle
F94736 Nogent sur Marne Cedex
France
+33 143947320 (Phone)

Ecole Nationale des Ponts et Chaussées (ENPC) ( email )

28, rue des Saints-Peres
75343 Paris Cedex 07
France

Université Paris Est ( email )

Batiment Bois de l'Etang
5 rue Galilee
Champs sur Marne, 77420
France

Stephane Hallegatte

World Bank ( email )

1818 H Street NW
Washington, DC 20433
United States

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