Last Update: Nov.1, 2003

This figure shows the cost-effective technological scenario of the world total CO2 emission reduction for the 550 ppmv atabilization. The figure provides a quantitative strategy of the "New Earth 21" program which was conceptually proposed by the Japanese government, using Integrated Assessment Model DNE21. The figure is generated using the difference in primary energy production, CO2 sequestration and emissions between the Reference Case and the 550 ppmv Stabilization Case.
The best mixture of technological options would minimize the system costs for the atmospheric CO2 concentration stabilization. Energy savings and conversions among fossil fuels play important roles before the middle of the 21st century, and CO2 sequestration technologies play important roles after the middle of the 21st century.