The number comes from measures to reduce emissions. If you're reducing emissions and getting to net zero in the maritime sector, which has not yet had the benefit of any transition investment, you would need.... Estimates of what it would cost to get to that transition put it at about $500 a tonne.
We saw similar costs when we did early-stage transition, for example, in the oil and gas sector in Alberta, where I worked. If you put $500-a-tonne cost to the transition.... One of the measures in the net-zero framework at the IMO was putting a $380-a-tonne charge on the ships that exceeded a threshold. On the dirtiest ships—