Development of emissions scenarios and mitigation options

National and subnational governments should set ambitious GHG emission reduction targets and evaluate different policies to achieve them. Scenario work allows projecting emissions over time, as well as other variables such as employment or GDP, taking into account "assumptions" and answering questions such as: What if emissions grow out of control, What if we set a target compatible with science, How much emissions could a carbon tax of USD 10 per ton of CO2eq reduce, How much emissions could a 30% increase in the use of renewable energy reduce, How much emissions could an increase of 30% in the use of renewable energy reduce, How much emissions could an increase of 30% in the use of renewable energy reduce, How much emissions could we reduce?