Matt Carthy (Cavan-Monaghan, Sinn Fein) | Oireachtas source

I thank all our guests for being here. As I am sure they are aware, these areas can be incredibly complex. They become more complex when we get evidence that suggests that the accounting and calculation model we are basing all of these conversations on may actually be flawed. I have a question for Professor Allen with regard to the different types of methane. As I understand from the evidence we have received, there is biogenic methane, which is emitted from cattle and has been a focal point of conversation in Ireland, and there is non-biogenic methane that basically comes from mining. Is that correct? Could Professor Allen differentiate between the two in terms of how they are currently calculated and how he sees that they should be calculated?