首页 | 本学科首页   官方微博 | 高级检索  
     


The geography of global urban greenhouse gas emissions: an exploratory analysis
Authors:Peter John Marcotullio  Andrea Sarzynski  Jochen Albrecht  Niels Schulz  Jake Garcia
Affiliation:1. Hunter College, CUNY, New York, NY, USA
2. School of Public Policy & Administration, University of Delaware, Newark, DE, 19716, USA
3. International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria
Abstract:The purpose of this paper is to describe global urban greenhouse gas emissions by region and sector, examine the distribution of emissions through the urban-to-rural gradient, and identify covariates of emission levels for our baseline year, 2000. We use multiple existing spatial databases to identify urban extent, greenhouse gas emissions (CO2, N2O, CH4 and SF6) and covariates of emissions in a “top-down” analysis. The results indicate that urban activities are significant sources of total greenhouse gas emissions (36.8 and 48.6 % of total). The urban energy sector accounts for between 41.5 and 66.3 % of total energy emissions. Significant differences exist in the urban share of greenhouse gas emissions between developed and developing countries as well as among source sectors for geographic regions. The 50 largest urban emitting areas account for 38.8 % of all urban greenhouse gas emissions. We find that greenhouse gas emissions are significantly associated with population size, density, growth rates, and per capita income. Finally, comparison of our results to “bottom-up” estimates suggest that this research’s data and techniques are best used at the regional and global scales.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号