2C or Not 2C?

Celine Guivarch

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

S. Hallegatte

World Bank

January 19, 2012

FEEM Working Paper No. 87.2011

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.

Number of Pages in PDF File: 39

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

JEL Classification: Q5, Q58

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Date posted: January 21, 2012  

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

Contact Information

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
+33 143947320 (Phone)
Ecole Nationale des Ponts et Chaussées (ENPC) ( email )
28, rue des Saints-Peres
75343 Paris Cedex 07
Université Paris Est ( email )
Batiment Bois de l'Etang
5 rue Galilee
Champs sur Marne, 77420
Stephane Hallegatte
World Bank ( email )
1818 H Street NW
Washington, DC 20433
United States
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