SI4. Additional updates to DICE
In addition to the changes described above we made some additional minor
changes. 1) We excluded the possibility to have negative
CO2 emissions in both DICE 2016R2 and in our
recalibrated version (in DICE 2016R2 negative CO2emissions are allowed beyond 2160). This was made in order to avoid that
larger emissions during the 21st century can be
compensated by negative emissions at later years in the model. This only
has a minor impact on the results. 2) We also set damage estimates to
zero in both DICE 29016R2 and our modified version since we are in this
paper only interested in pathways for different stabilization targets
and not in the damage estimates. This change has only a minor impact on
CO2 emissions pathway towards stabilization at 2.5°C or
less.