In this study, cost-effective technological options to stabilize CO2 concentrations at 550, 500, and 450 ppmv are evaluated using a world energy systems model of linear programming with a high regional resolution. This model treats technological change endogenously for wind power, photovoltaics,...

In this study, cost-effective technological options to stabilize CO2 concentrations at 550, 500, and 450 ppmv are evaluated using a world energy systems model of linear programming with a high regional resolution. This model treats technological change endogenously for wind power, photovoltaics,...

This study first evaluates the pledges under the Copenhagen Accord using the DNE21+ model. Our estimates for the 2020 pledges fall collectively within the range of 46,700–49,100Mt CO2-eq. Our study also finds the efforts arising from the current 2020 pledges have wide-ranging implications in...