Eamon Ryan (Dublin Bay South, Green Party) | Oireachtas source

We did that when we were in government. We introduced a carbon tax on large corporations in the emissions trading scheme, ETS. Unfortunately, the Supreme Court ruled against the way we did it. I think there are mechanisms like this that we should consider again looking at that Supreme Court judgement because it is appropriate for us, particularly with regard to seeing companies in the ETS paying more as well. There was a difficulty with the Supreme Court when we did it. The case was taken during the tenure of a subsequent Government but it was possible.