Alice-Mary Higgins (Independent) | Oireachtas source

Building on that and in light of the environmental externality argument, the tax applies to carbon, but does it not also apply in respect of other greenhouse gases that are part of the fuel mix, for example, to methane, which is a large component of shale gas? The costs relating to methane as a greenhouse gas are being carried socially and environmentally by society and that should be reflected in the same way as carbon.