Document Detail

Sharing global CO2 emission reductions among one billion high emitters.
MedLine Citation:
PMID:  19581586     Owner:  NLM     Status:  MEDLINE    
We present a framework for allocating a global carbon reduction target among nations, in which the concept of "common but differentiated responsibilities" refers to the emissions of individuals instead of nations. We use the income distribution of a country to estimate how its fossil fuel CO(2) emissions are distributed among its citizens, from which we build up a global CO(2) distribution. We then propose a simple rule to derive a universal cap on global individual emissions and find corresponding limits on national aggregate emissions from this cap. All of the world's high CO(2)-emitting individuals are treated the same, regardless of where they live. Any future global emission goal (target and time frame) can be converted into national reduction targets, which are determined by "Business as Usual" projections of national carbon emissions and in-country income distributions. For example, reducing projected global emissions in 2030 by 13 GtCO(2) would require the engagement of 1.13 billion high emitters, roughly equally distributed in 4 regions: the U.S., the OECD minus the U.S., China, and the non-OECD minus China. We also modify our methodology to place a floor on emissions of the world's lowest CO(2) emitters and demonstrate that climate mitigation and alleviation of extreme poverty are largely decoupled.
Shoibal Chakravarty; Ananth Chikkatur; Heleen de Coninck; Stephen Pacala; Robert Socolow; Massimo Tavoni
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-06
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  106     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-07-22     Completed Date:  2009-08-25     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  11884-8     Citation Subset:  IM    
Princeton Environmental Institute, Princeton University, Princeton, NJ 08540, USA.
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MeSH Terms
Carbon Dioxide / analysis*
Greenhouse Effect*
Vehicle Emissions*
Reg. No./Substance:
0/Vehicle Emissions; 124-38-9/Carbon Dioxide
Comment In:
Proc Natl Acad Sci U S A. 2009 Oct 27;106(43):E122-3; author reply E124   [PMID:  19850867 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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