2C or Not 2C?

39 Pages Posted: 21 Jan 2012

See all articles by Celine Guivarch

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


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, Céline and Hallegatte, Stephane, 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
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F94736 Nogent sur Marne Cedex
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Ecole Nationale des Ponts et Chaussées (ENPC) ( email )

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Université Paris Est ( email )

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Stephane Hallegatte

World Bank ( email )

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Washington, DC 20433
United States

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