Professor Barry McMullin:

That was the bit that was missing. On the question of things being left off the balance sheet, like international aviation and shipping, it is really important so I completely agree on that. What can I say about military emissions? For various reasons they have been excluded and they are obviously growing. Increasing conflict is terrible on so many fronts, but it has a climate impact as well and we need to be aware of that.

On the scenarios, this is my final point but I do not want to dodge this discussion. The thrust of the critique we have offered is it appears the budgets proposed by the council are probably too high. They represent a disproportionate claim, an unfair claim, on the available global effort. However, the budget came from these underlying scenarios which are already extremely stringent.

If that were to be revisited and the outcomes were to be, as we anticipate, that the proposed budgets were too high or not really compatible with fair share, then revisiting the scenarios, as Professor Daly has said, to look much more closely at additional or more stringent scenarios would be necessary. That may still leave a gap. The conclusion of that exercise may be that we will not see any way that is politically, socially and economically acceptable for Ireland to meet its fair share or live within its fair share. I do not want to jump ahead to that discussion too quickly but if that is where the discussion goes, it is better to have it openly and honestly than pretend it is not the case.