Projected cumulative CO2 emissions for the period 2000-2050 compared to CO2 emission budgets for warming potential and atmospheric concentrations.

The table summarizes the emission values before and after countries reach the HDI of 0.8 according to a DAU approach and under the proposed reduction framework. A collection of previous calculated budgets for allowable CO2 emissions highlights the efforts necessary for emission reductions.*Cumulative emissions necessary for development assuming an HDI threshold of 0.9 would range from 600 to 600 Gt CO2.**Assuming the same uncertainty as in DAU.