An additional category—adaptation—is now also considered relevant.
Note the study also found that the use of the SCC values was not always consistent, for
example, some analysts had used the central illustrative value of £70/tC only, whilst some
used the full range £35 to £140/tC. It also identified a limited number of relevant policy
appraisals which had important effects on greenhouse gas emissions, but had not used the
SCC values.