Inequality in CO2 emission during 1950-2010 Team: Tao Shu, Li Bengang, Zhang Yu Speaker: Li Bengang October 13~14, 2014. Paris. College of Urban and Environmental Sciences, Peking University
Total FF CO2 1970 2008
Objectives: Inequlity Time trend Contributions of individual countries From CDIAC Objectives: Inequlity Time trend Contributions of individual countries From CDIAC
China, USA, India, Russia……
USA, China, Russia, Germany, India, UK……
cumulative CO2 emission B Gini Index = A / ( A + B ) cumulative CO2 emission Carbon Gini Index - Inequlity in global CO2 emission
Datasets: CDIAC Fossil-Fuel CO2 Emissions : 1751 - 2010 http://cdiac.ornl.gov/trends/emis/meth_reg.html UDSD Population : 1950 - 2010 http://data.un.org/Search.aspx?q=population
Carbon Gini Index : Annual & Accumulated
Lorenz Curve : Annual
Lorenz Curve : Historical
Contribution of individual countries to Carbon Gini Index
Absolute contribution of Continents to Carbon Gini Index Annual Accumulated
Absolute contribution of G20 countries to Carbon Gini Index Annual Accumulated
Relative contribution of Developed & Developing countries to Carbon Gini Index : Annual & Accumulated
Contributions of BRICS countries to Carbon Gini Index Annual Accumulated
Conclusions Inequality in global FF-CO2 emission is decreasing for the period 1950-2010. The first decreasing of inequality (for the period 1950-199x) is mainly caused by increasing emission of developing countries. For the period 2000-2010, decreasing of inequality is caused mainly by decreasing emission of developed countries. Inequality in historical accumulated emission is contributed mainly by developed countries due to large emission during their industrialization process.
Thanks to scientists from France. Questions?