Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries

This paper examines the extent to which countries have succeeded in decoupling transport emissions from economic growth, and how changes in emissions intensity, economic growth, and population growth have contributed to changes in transportation-re...

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Main Authors: Foster, Vivien, Dim, Jennifer Uju, Vollmer, Sebastian, Zhang, Fan
Format: Working Paper
Language:English
Published: World Bank, Washington, DC 2021
Subjects:
Online Access:http://documents.worldbank.org/curated/undefined/766991634561185532/Understanding-Drivers-of-Decoupling-of-Global-Transport-CO2-Emissions-from-Economic-Growth-Evidence-from-145-Countries
http://hdl.handle.net/10986/36427
id okr-10986-36427
recordtype oai_dc
spelling okr-10986-364272021-10-29T05:10:46Z Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries Foster, Vivien Dim, Jennifer Uju Vollmer, Sebastian Zhang, Fan CARBON DIOXIDE EMISSIONS GREENHOUSE GAS EMISSIONS CLIMATE CHANGE MITIGATION ECONOMIC GROWTH TRANSPORTATION SECTOR This paper examines the extent to which countries have succeeded in decoupling transport emissions from economic growth, and how changes in emissions intensity, economic growth, and population growth have contributed to changes in transportation-related emissions. The paper employs a modified version of the Tapio decoupling model, and demonstrates that over the 1990–2018 study period only 12 of 145 countries achieved “absolute decoupling,” defined as reducing emissions while growing gross domestic product. The majority of the top emitters remain in a “relative decoupling” state, with emissions growing more slowly than gross domestic product. Many of the middle- and low-income countries have not achieved decoupling; their emissions are growing as fast as or faster than gross domestic product. To understand the driving factors of transport-related carbon emissions, the paper conducts index-decomposition and an econometric analysis. The results reveal that while transportation emission intensity has declined in most countries, economic growth and population growth have offset these declines. If these patterns continue, achieving the goals of the Paris Agreement with improvements in efficiency alone seems unrealistic. The paper also shows evidence that higher energy prices are associated with strong emissions reduction. 2021-10-28T13:59:27Z 2021-10-28T13:59:27Z 2021-10 Working Paper http://documents.worldbank.org/curated/undefined/766991634561185532/Understanding-Drivers-of-Decoupling-of-Global-Transport-CO2-Emissions-from-Economic-Growth-Evidence-from-145-Countries http://hdl.handle.net/10986/36427 English Policy Research Working Paper;No. 9809 CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo World Bank World Bank, Washington, DC Publications & Research Publications & Research :: Policy Research Working Paper
repository_type Digital Repository
institution_category Foreign Institution
institution Digital Repositories
building World Bank Open Knowledge Repository
collection World Bank
language English
topic CARBON DIOXIDE EMISSIONS
GREENHOUSE GAS EMISSIONS
CLIMATE CHANGE MITIGATION
ECONOMIC GROWTH
TRANSPORTATION SECTOR
spellingShingle CARBON DIOXIDE EMISSIONS
GREENHOUSE GAS EMISSIONS
CLIMATE CHANGE MITIGATION
ECONOMIC GROWTH
TRANSPORTATION SECTOR
Foster, Vivien
Dim, Jennifer Uju
Vollmer, Sebastian
Zhang, Fan
Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
relation Policy Research Working Paper;No. 9809
description This paper examines the extent to which countries have succeeded in decoupling transport emissions from economic growth, and how changes in emissions intensity, economic growth, and population growth have contributed to changes in transportation-related emissions. The paper employs a modified version of the Tapio decoupling model, and demonstrates that over the 1990–2018 study period only 12 of 145 countries achieved “absolute decoupling,” defined as reducing emissions while growing gross domestic product. The majority of the top emitters remain in a “relative decoupling” state, with emissions growing more slowly than gross domestic product. Many of the middle- and low-income countries have not achieved decoupling; their emissions are growing as fast as or faster than gross domestic product. To understand the driving factors of transport-related carbon emissions, the paper conducts index-decomposition and an econometric analysis. The results reveal that while transportation emission intensity has declined in most countries, economic growth and population growth have offset these declines. If these patterns continue, achieving the goals of the Paris Agreement with improvements in efficiency alone seems unrealistic. The paper also shows evidence that higher energy prices are associated with strong emissions reduction.
format Working Paper
author Foster, Vivien
Dim, Jennifer Uju
Vollmer, Sebastian
Zhang, Fan
author_facet Foster, Vivien
Dim, Jennifer Uju
Vollmer, Sebastian
Zhang, Fan
author_sort Foster, Vivien
title Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
title_short Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
title_full Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
title_fullStr Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
title_full_unstemmed Understanding Drivers of Decoupling of Global Transport CO2 Emissions from Economic Growth : Evidence from 145 Countries
title_sort understanding drivers of decoupling of global transport co2 emissions from economic growth : evidence from 145 countries
publisher World Bank, Washington, DC
publishDate 2021
url http://documents.worldbank.org/curated/undefined/766991634561185532/Understanding-Drivers-of-Decoupling-of-Global-Transport-CO2-Emissions-from-Economic-Growth-Evidence-from-145-Countries
http://hdl.handle.net/10986/36427
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