This paper provides the latest developments of announced, proposed and existing greenhouse gas emissions trading schemes (ETS) around the world since 2006. It also examines different potential design options for ETS (e.g. coverage, allocation mode, provision for offsets), and how these options are treated in the existing, announced or proposed schemes.

This report provides comparative data on a number of measures of emissions for a wide range of countries, allowing comparisons to be made among the different measures. It provides a decomposition of the change in fossil fuel CO2 emissions between 1994 and 2004 into changes in five factors: the average emission per unit of fossil fuel consumed; the share of fossil fuel consumption in total energy consumption; total energy consumption per unit of GDP; GDP per capita; and population. It carries out this decomposition for the top 70 countries in terms of 2004 emissions of CO2 from fossil fuels.