Allowing emissions reporting both for IAM definitions and National Inventories definitions (CO2|AFOLU)

[jkikstra]

For ScenarioMIP / CMIP7, the wish has been expressed to report emissions both according to standard

This will be of interest to at least @gidden (and potentially others).

E.g., is there a way to separately report emissions from Forest Management?
This probably needs to be discussed in the emissions working group, but in coordination with key users.