Document Detail


Climate forcing from the transport sectors.
MedLine Citation:
PMID:  18180450     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Although the transport sector is responsible for a large and growing share of global emissions affecting climate, its overall contribution has not been quantified. We provide a comprehensive analysis of radiative forcing from the road transport, shipping, aviation, and rail subsectors, using both past- and forward-looking perspectives. We find that, since preindustrial times, transport has contributed approximately 15% and 31% of the total man-made CO2 and O3 forcing, respectively. A forward-looking perspective shows that the current emissions from transport are responsible for approximately 16% of the integrated net forcing over 100 years from all current man-made emissions. The dominating contributor to positive forcing (warming) is CO2, followed by tropospheric O3. By subsector, road transport is the largest contributor to warming. The transport sector also exerts cooling through reduced methane lifetime and atmospheric aerosol effects. Shipping causes net cooling, except on future time scales of several centuries. Much of the forcing from transport comes from emissions not covered by the Kyoto Protocol.
Authors:
Jan Fuglestvedt; Terje Berntsen; Gunnar Myhre; Kristin Rypdal; Ragnhild Bieltvedt Skeie
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-01-07
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  105     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-16     Completed Date:  2008-02-06     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  454-8     Citation Subset:  IM    
Affiliation:
Center for International Climate and Environmental Research-Oslo, P.O. Box 1129 Blindern, N-0318 Oslo, Norway. j.s.fuglestvedt@cicero.uio.no
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MeSH Terms
Descriptor/Qualifier:
Aerosols
Air Pollutants / analysis*
Air Pollution / economics,  legislation & jurisprudence*,  prevention & control*
Atmosphere
Carbon Dioxide / analysis*,  chemistry,  economics
Climate
Conservation of Energy Resources / economics,  legislation & jurisprudence*,  methods*
Greenhouse Effect
Models, Theoretical
Ozone / chemistry
Reference Values
Transportation
Vehicle Emissions / analysis*
Chemical
Reg. No./Substance:
0/Aerosols; 0/Air Pollutants; 0/Vehicle Emissions; 10028-15-6/Ozone; 124-38-9/Carbon Dioxide
Comments/Corrections

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