A MACRO-ASSESSMENT OF TECHNOLOGY OPTIONS FOR CO2 MITIGATION IN CHINA ENERGY SYSTEM

China's CO2 emissions from commercial fossil fuel reached 638 Mt C in 1990, accounting for 11% of the world total emissions of that year. Th e emission is expected to increase together with its high GDP growth r ate in the future. This paper analyses the characteristics of China's CO2 emissions and proposes several options for mitigating the CO2 emis sions on a large scale, such as strengthening energy conservation, int roducing energy-efficient technologies into the energy system, speedin g up non-fossil fuels development, importing oil and natural gas to su bstitute for coal and so on. Through the application of the ETO model, the paper evaluates the cost of mitigating CO2 emissions and its effe cts on national economic development.