Ms Meabh Gallagher:

At the time of the proposal for the provisional CB3, it was based on a linear interpolation from 2030 out to 2050. In the years since then, we have had more up-to-date analysis and projections as to the achievement of that 51% reduction by 2030. None of those more than 1,000 combinations of scenarios achieved a 51% reduction in emissions by 2030. That resulted in a more nuanced analysis of the feasibility of emissions reductions out to 2030 and led to the increase in the budget under the final proposal for CB3.