The welfare properties of climate targets Léo Coppens and Frank Venmans

The Institute is funded by the Grantham Foundation for the Protection of the Environment and a number of other sources. [...] The role of climate inertia depends on the level of ambition of the scenarios. [...] This makes the emission path close to the CB solution in the second half of the century. [...] In the 2°C analysis, the largest differences are not caused by the different ways to constrain the scenarios but they appear between CB on the one hand, and all the CE scenarios on the other hand. [...] For instance, in order to reach the 1.5°C target in 2100, the emissions level in 2050 ranges from 2 to 17 GtCO2-eq, depending on the formulation of the target.