message_ix_models.tools.add_tax_emission.main

message_ix_models.tools.add_tax_emission.main(scen: Scenario, price: float, conversion_factor: float = 3.6666666666666665) → None[source]

Add a global CO2 price to scen.

A global carbon price is implemented with an annual growth rate equal to the discount rate.

Parameters:

scen – Scenario for which a carbon price should be added.
price – Carbon price which should be added to the model. This value will be applied from the ‘firstmodelyear’ onwards.
conversion_factor – The conversion_factor with which the input value is multiplied. The default assumption assumes that the price is specified in US$2005/tCO2, hence it is converted to US$2005/tC as required by the model.